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[Qemu-devel] [PULL 23/41] qemu-nbd: Clean up "Failed to load snapshot" e
From: |
Markus Armbruster |
Subject: |
[Qemu-devel] [PULL 23/41] qemu-nbd: Clean up "Failed to load snapshot" error message |
Date: |
Wed, 13 Jan 2016 16:43:21 +0100 |
bdrv_snapshot_load_tmp() sets an error and returns -errno on failure.
We report both even though the error message is self-contained. Drop
the redundant strerror().
While there: setting errno right before exit() is pointless, so drop
that, too.
Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Message-Id: <address@hidden>
---
qemu-nbd.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)
diff --git a/qemu-nbd.c b/qemu-nbd.c
index 706552e..b8be3bc 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -156,8 +156,7 @@ static int find_partition(BlockBackend *blk, int partition,
int ret;
if ((ret = blk_read(blk, 0, data, 1)) < 0) {
- errno = -ret;
- error_report("error while reading: %s", strerror(errno));
+ error_report("error while reading: %s", strerror(-ret));
exit(EXIT_FAILURE);
}
@@ -178,8 +177,7 @@ static int find_partition(BlockBackend *blk, int partition,
int j;
if ((ret = blk_read(blk, mbr[i].start_sector_abs, data1, 1)) < 0) {
- errno = -ret;
- error_report("error while reading: %s", strerror(errno));
+ error_report("error while reading: %s", strerror(-ret));
exit(EXIT_FAILURE);
}
@@ -721,9 +719,8 @@ int main(int argc, char **argv)
&local_err);
}
if (ret < 0) {
- errno = -ret;
- error_report("Failed to load snapshot: %s: %s",
- error_get_pretty(local_err), strerror(errno));
+ error_report("Failed to load snapshot: %s",
+ error_get_pretty(local_err));
exit(EXIT_FAILURE);
}
@@ -738,9 +735,8 @@ int main(int argc, char **argv)
if (partition != -1) {
ret = find_partition(blk, partition, &dev_offset, &fd_size);
if (ret < 0) {
- errno = -ret;
error_report("Could not find partition %d: %s", partition,
- strerror(errno));
+ strerror(-ret));
exit(EXIT_FAILURE);
}
}
--
2.4.3
- [Qemu-devel] [PULL 02/41] Use error_fatal to simplify obvious fatal errors, (continued)
- [Qemu-devel] [PULL 02/41] Use error_fatal to simplify obvious fatal errors, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 05/41] omap: Don't use hw_error() in device init() methods, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 07/41] etraxfs_eth: Don't use hw_error() in init() method, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 11/41] sysbus: Don't use hw_error() in machine_init_done_notifiers, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 17/41] qemu-nbd: Replace BSDism <err.h> by error_report(), Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 28/41] error: Use error_prepend() where it makes obvious sense, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 19/41] error: Use error_report_err() instead of monitor_printf(), Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 35/41] pci-assign: Clean up "Failed to assign" error messages, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 06/41] arm_mptimer: Don't use hw_error() in realize() method, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 14/41] isa: Clean up inappropriate hw_error(), Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 23/41] qemu-nbd: Clean up "Failed to load snapshot" error message,
Markus Armbruster <=
- [Qemu-devel] [PULL 12/41] isa: Trivially convert remaining PCI-ISA bridges to realize(), Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 16/41] xen-hvm: Mark inappropriate error handling FIXME, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 25/41] error: New error_prepend(), error_reportf_err(), Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 10/41] hw/arm/virt: Fix property "gic-version" error handling, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 29/41] spapr: Use error_reportf_err(), Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 41/41] checkpatch: Detect newlines in error_report and other error functions, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 33/41] vmdk: Clean up control flow in vmdk_parse_extents() a bit, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 26/41] error: Don't decorate original error message when adding to it, Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 32/41] error: Strip trailing '\n' from error string arguments (again), Markus Armbruster, 2016/01/13
- [Qemu-devel] [PULL 40/41] error: Consistently name Error * objects err, and not errp, Markus Armbruster, 2016/01/13