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Fix misleading error message in btrfsctl
author
Calvin Walton
<calvin.walton@gmail.com>
Wed, 21 Jan 2009 18:22:49 +0000
(13:22 -0500)
committer
Chris Mason
<chris.mason@oracle.com>
Wed, 21 Jan 2009 18:22:49 +0000
(13:22 -0500)
This updates Peter Klotz's original patch to use perror instead of fprintf
when it fails to open /dev/btrfs-control
btrfsctl.c
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diff --git
a/btrfsctl.c
b/btrfsctl.c
index
e049799
..
df1a165
100644
(file)
--- a/
btrfsctl.c
+++ b/
btrfsctl.c
@@
-189,6
+189,10
@@
int main(int ac, char **av)
if (command == BTRFS_IOC_SCAN_DEV) {
fd = open("/dev/btrfs-control", O_RDWR);
+ if (fd < 0) {
+ perror("failed to open /dev/btrfs-control");
+ exit(1);
+ }
name = fname;
} else {
fd = open_file_or_dir(fname);