The coverity checker noticed that we may pass a NULL super_block to
do_quotactl() that dereferences it.
Dereferencing NULL pointers is bad medicine, better check and fail
gracefully.
Signed-off-by: Jesper Juhl <[email protected]>
---
fs/quota.c | 3 +++
1 files changed, 3 insertions(+)
--- linux-2.6.16-rc6-orig/fs/quota.c 2006-03-12 14:19:02.000000000 +0100
+++ linux-2.6.16-rc6/fs/quota.c 2006-03-18 23:03:32.000000000 +0100
@@ -231,6 +231,9 @@ static int do_quotactl(struct super_bloc
{
int ret;
+ if (!sb)
+ return -ENODEV;
+
switch (cmd) {
case Q_QUOTAON: {
char *pathname;
-
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