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[Qemu-devel] [PATCH v2 07/23] qemu-nbd: Clean up "Failed to load snapsho
From: |
Markus Armbruster |
Subject: |
[Qemu-devel] [PATCH v2 07/23] qemu-nbd: Clean up "Failed to load snapshot" error message |
Date: |
Thu, 17 Dec 2015 17:49:48 +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>
---
qemu-nbd.c | 14 +++++---------
1 file changed, 5 insertions(+), 9 deletions(-)
diff --git a/qemu-nbd.c b/qemu-nbd.c
index ac7ceef..b8ee2d0 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);
}
@@ -719,9 +717,8 @@ 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);
}
@@ -736,9 +733,8 @@ 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
- Re: [Qemu-devel] [PATCH v2 16/23] error: Strip trailing '\n' from error string arguments (again), (continued)
- [Qemu-devel] [PATCH v2 06/23] block: Clean up "Could not create temporary overlay" error message, Markus Armbruster, 2015/12/17
- [Qemu-devel] [PATCH v2 05/23] error: Improve documentation around error_append_hint(), Markus Armbruster, 2015/12/17
- Re: [Qemu-devel] [PATCH v2 05/23] error: Improve documentation around error_append_hint(), Eric Blake, 2015/12/17
- Re: [Qemu-devel] [PATCH v2 05/23] error: Improve documentation around error_append_hint(), Markus Armbruster, 2015/12/17
- Re: [Qemu-devel] [PATCH v2 05/23] error: Improve documentation around error_append_hint(), Eric Blake, 2015/12/17
- Re: [Qemu-devel] [PATCH v2 05/23] error: Improve documentation around error_append_hint(), Markus Armbruster, 2015/12/17
- Re: [Qemu-devel] [PATCH v2 05/23] error: Improve documentation around error_append_hint(), Eric Blake, 2015/12/17
- Re: [Qemu-devel] [PATCH v2 05/23] error: Improve documentation around error_append_hint(), Markus Armbruster, 2015/12/18
- [Qemu-devel] [PATCH v2 07/23] qemu-nbd: Clean up "Failed to load snapshot" error message,
Markus Armbruster <=
- [Qemu-devel] [PATCH v2 12/23] error: Use error_prepend() where it makes obvious sense, Markus Armbruster, 2015/12/17
- [Qemu-devel] [PATCH v2 11/23] error: Use error_reportf_err() where it makes obvious sense, Markus Armbruster, 2015/12/17
- [Qemu-devel] [PATCH v2 20/23] vhdx: Fix "log that needs to be replayed" error message, Markus Armbruster, 2015/12/17
- [Qemu-devel] [PATCH v2 19/23] pci-assign: Clean up "Failed to assign" error messages, Markus Armbruster, 2015/12/17