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smb3: add missing null server pointer check

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commit 45be0882c5f91e1b92e645001dd1a53b3bd58c97 upstream.

Address static checker warning in cifs_ses_get_chan_index():
    warn: variable dereferenced before check 'server'
To be consistent, and reduce risk, we should add another check
for null server pointer.

Fixes: 88675b22d34e ("cifs: do not search for channel if server is terminating")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steve French 2024-02-05 14:43:17 -06:00 • committed by Greg Kroah-Hartman
parent a7f34a0684
commit 824c15ad09
1 changed files with 1 additions and 1 deletions
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2
fs/smb/client/sess.c
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@ -76,7 +76,7 @@ cifs_ses_get_chan_index(struct cifs_ses *ses,
unsigned int i;
/* if the channel is waiting for termination */
if (server->terminate)
if (server && server->terminate)
return CIFS_INVAL_CHAN_INDEX;
for (i = 0; i < ses->chan_count; i++) {