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[Qemu-devel] [PATCH v2 3/4] parallels: split check for parallels format
From: |
Denis V. Lunev |
Subject: |
[Qemu-devel] [PATCH v2 3/4] parallels: split check for parallels format in parallels_open |
Date: |
Mon, 28 Jul 2014 20:23:54 +0400 |
and rework error path a bit. There is no difference at the moment, but
the code will be definitely shorter when additional processing will
be required for WithouFreSpacExt
Signed-off-by: Denis V. Lunev <address@hidden>
CC: Jeff Cody <address@hidden>
CC: Kevin Wolf <address@hidden>
CC: Stefan Hajnoczi <address@hidden>
---
block/parallels.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/block/parallels.c b/block/parallels.c
index 16d14ad..466705e 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -85,11 +85,11 @@ static int parallels_open(BlockDriverState *bs, QDict
*options, int flags,
goto fail;
}
- if (memcmp(ph.magic, HEADER_MAGIC, 16) ||
- (le32_to_cpu(ph.version) != HEADER_VERSION)) {
- error_setg(errp, "Image not in Parallels format");
- ret = -EINVAL;
- goto fail;
+ if (le32_to_cpu(ph.version) != HEADER_VERSION) {
+ goto fail_format;
+ }
+ if (memcmp(ph.magic, HEADER_MAGIC, 16)) {
+ goto fail_format;
}
bs->total_sectors = 0xffffffff & le64_to_cpu(ph.nb_sectors);
@@ -120,6 +120,9 @@ static int parallels_open(BlockDriverState *bs, QDict
*options, int flags,
qemu_co_mutex_init(&s->lock);
return 0;
+fail_format:
+ error_setg(errp, "Image not in Parallels format");
+ ret = -EINVAL;
fail:
g_free(s->catalog_bitmap);
return ret;
--
1.9.1