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[Qemu-devel] [PATCH 6/6] block: bdrv_img_create(): drop unused error han


From: Luiz Capitulino
Subject: [Qemu-devel] [PATCH 6/6] block: bdrv_img_create(): drop unused error handling code
Date: Fri, 19 Oct 2012 11:28:05 -0300

Signed-off-by: Luiz Capitulino <address@hidden>
---
 block.c | 40 +++++-----------------------------------
 block.h |  6 +++---
 2 files changed, 8 insertions(+), 38 deletions(-)

diff --git a/block.c b/block.c
index da74c05..673f4a7 100644
--- a/block.c
+++ b/block.c
@@ -4292,9 +4292,9 @@ bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie 
*cookie)
     bs->total_time_ns[cookie->type] += get_clock() - cookie->start_time_ns;
 }
 
-int bdrv_img_create(const char *filename, const char *fmt,
-                    const char *base_filename, const char *base_fmt,
-                    char *options, uint64_t img_size, int flags, Error **errp)
+void bdrv_img_create(const char *filename, const char *fmt,
+                     const char *base_filename, const char *base_fmt,
+                     char *options, uint64_t img_size, int flags, Error **errp)
 {
     QEMUOptionParameter *param = NULL, *create_options = NULL;
     QEMUOptionParameter *backing_fmt, *backing_file, *size;
@@ -4306,18 +4306,14 @@ int bdrv_img_create(const char *filename, const char 
*fmt,
     /* Find driver and parse its options */
     drv = bdrv_find_format(fmt);
     if (!drv) {
-        error_report("Unknown file format '%s'", fmt);
         error_setg(errp, "Unknown file format '%s'", fmt);
-        ret = -EINVAL;
-        goto out;
+        return;
     }
 
     proto_drv = bdrv_find_protocol(filename);
     if (!proto_drv) {
-        error_report("Unknown protocol '%s'", filename);
         error_setg(errp, "Unknown protocol '%s'", filename);
-        ret = -EINVAL;
-        goto out;
+        return;
     }
 
     create_options = append_option_parameters(create_options,
@@ -4334,9 +4330,7 @@ int bdrv_img_create(const char *filename, const char *fmt,
     if (options) {
         param = parse_option_parameters(options, create_options, param);
         if (param == NULL) {
-            error_report("Invalid options for file format '%s'.", fmt);
             error_setg(errp, "Invalid options for file format '%s'.", fmt);
-            ret = -EINVAL;
             goto out;
         }
     }
@@ -4344,22 +4338,16 @@ int bdrv_img_create(const char *filename, const char 
*fmt,
     if (base_filename) {
         if (set_option_parameter(param, BLOCK_OPT_BACKING_FILE,
                                  base_filename)) {
-            error_report("Backing file not supported for file format '%s'",
-                         fmt);
             error_setg(errp, "Backing file not supported for file format '%s'",
                        fmt);
-            ret = -EINVAL;
             goto out;
         }
     }
 
     if (base_fmt) {
         if (set_option_parameter(param, BLOCK_OPT_BACKING_FMT, base_fmt)) {
-            error_report("Backing file format not supported for file "
-                         "format '%s'", fmt);
             error_setg(errp, "Backing file format not supported for file "
                              "format '%s'", fmt);
-            ret = -EINVAL;
             goto out;
         }
     }
@@ -4367,11 +4355,8 @@ int bdrv_img_create(const char *filename, const char 
*fmt,
     backing_file = get_option_parameter(param, BLOCK_OPT_BACKING_FILE);
     if (backing_file && backing_file->value.s) {
         if (!strcmp(filename, backing_file->value.s)) {
-            error_report("Error: Trying to create an image with the "
-                         "same filename as the backing file");
             error_setg(errp, "Error: Trying to create an image with the "
                              "same filename as the backing file");
-            ret = -EINVAL;
             goto out;
         }
     }
@@ -4380,11 +4365,8 @@ int bdrv_img_create(const char *filename, const char 
*fmt,
     if (backing_fmt && backing_fmt->value.s) {
         backing_drv = bdrv_find_format(backing_fmt->value.s);
         if (!backing_drv) {
-            error_report("Unknown backing file format '%s'",
-                         backing_fmt->value.s);
             error_setg(errp, "Unknown backing file format '%s'",
                        backing_fmt->value.s);
-            ret = -EINVAL;
             goto out;
         }
     }
@@ -4406,7 +4388,6 @@ int bdrv_img_create(const char *filename, const char *fmt,
 
             ret = bdrv_open(bs, backing_file->value.s, back_flags, 
backing_drv);
             if (ret < 0) {
-                error_report("Could not open '%s'", backing_file->value.s);
                 error_setg_errno(errp, -ret, "Could not open '%s'",
                                  backing_file->value.s);
                 goto out;
@@ -4417,9 +4398,7 @@ int bdrv_img_create(const char *filename, const char *fmt,
             snprintf(buf, sizeof(buf), "%" PRId64, size);
             set_option_parameter(param, BLOCK_OPT_SIZE, buf);
         } else {
-            error_report("Image creation needs a size parameter");
             error_setg(errp, "Image creation needs a size parameter");
-            ret = -EINVAL;
             goto out;
         }
     }
@@ -4429,21 +4408,14 @@ int bdrv_img_create(const char *filename, const char 
*fmt,
     puts("");
 
     ret = bdrv_create(drv, filename, param);
-
     if (ret < 0) {
         if (ret == -ENOTSUP) {
-            error_report("Formatting or formatting option not supported for "
-                         "file format '%s'", fmt);
             error_setg(errp,"Formatting or formatting option not supported for 
"
                             "file format '%s'", fmt);
         } else if (ret == -EFBIG) {
-            error_report("The image size is too large for file format '%s'",
-                         fmt);
             error_setg(errp, "The image size is too large for file format 
'%s'",
                        fmt);
         } else {
-            error_report("%s: error while creating %s: %s", filename, fmt,
-                         strerror(-ret));
             error_setg(errp, "%s: error while creating %s: %s", filename, fmt,
                        strerror(-ret));
         }
@@ -4456,6 +4428,4 @@ out:
     if (bs) {
         bdrv_delete(bs);
     }
-
-    return ret;
 }
diff --git a/block.h b/block.h
index 0dac865..69bb4be 100644
--- a/block.h
+++ b/block.h
@@ -339,9 +339,9 @@ int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t 
*buf,
 int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
                       int64_t pos, int size);
 
-int bdrv_img_create(const char *filename, const char *fmt,
-                    const char *base_filename, const char *base_fmt,
-                    char *options, uint64_t img_size, int flags, Error **errp);
+void bdrv_img_create(const char *filename, const char *fmt,
+                     const char *base_filename, const char *base_fmt,
+                     char *options, uint64_t img_size, int flags, Error 
**errp);
 
 void bdrv_set_buffer_alignment(BlockDriverState *bs, int align);
 void *qemu_blockalign(BlockDriverState *bs, size_t size);
-- 
1.7.12.315.g682ce8b




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