cifs: prevent truncation from long to int in wait_for_free_credits

Ronnie Sahlberg · smfrench · commit 19e888678bac · 2020-07-01T20:01:26.000-05:00
The wait_event_... defines evaluate to long so we should not assign it an int as this may truncate
the value.

Reported-by: Marshall Midden &lt;marshallmidden@gmail.com&gt;
Signed-off-by: Ronnie Sahlberg &lt;lsahlber@redhat.com&gt;
Signed-off-by: Steve French &lt;stfrench@microsoft.com&gt;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
@@ -523,7 +523,7 @@ wait_for_free_credits(struct TCP_Server_Info *server, const int num_credits,
 		      const int timeout, const int flags,
 		      unsigned int *instance)
 {
-	int rc;
+	long rc;
 	int *credits;
 	int optype;
 	long int t;

Original file line number	Diff line number	Diff line change
`@@ -523,7 +523,7 @@ wait_for_free_credits(struct TCP_Server_Info *server, const int num_credits,`
`523`	`523`	`const int timeout, const int flags,`
`524`	`524`	`unsigned int *instance)`
`525`	`525`	`{`
`526`		`- int rc;`
	`526`	`+ long rc;`
`527`	`527`	`int *credits;`
`528`	`528`	`int optype;`
`529`	`529`	`long int t;`