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affs: kstrdup() memory handling

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There is a possibility of kstrdup() failure upon memory pressure.
Therefore, returning ENOMEM even for new_opts.

[[email protected]: cleanup]
Signed-off-by: Sanidhya Kashyap <[email protected]>
Cc: Taesoo kim <[email protected]>
Cc: Fabian Frederick <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Sanidhya Kashyap 2015-04-16 12:48:26 -07:00 • committed by Linus Torvalds
commit c8f33d0bec
1 changed files with 5 additions and 1 deletions
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6
fs/affs/super.c
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@ -521,10 +521,14 @@ affs_remount(struct super_block *sb, int *flags, char *data)
int root_block;
unsigned long mount_flags;
int res = 0;
char *new_opts = kstrdup(data, GFP_KERNEL);
char *new_opts;
char volume[32];
char *prefix = NULL;
new_opts = kstrdup(data, GFP_KERNEL);
if (!new_opts)
return -ENOMEM;
pr_debug("%s(flags=0x%x,opts=\"%s\")\n", __func__, *flags, data);
sync_filesystem(sb);