[PATCH] fsm.c - null ptr fixes for 2.4.4

Praveen Srinivasan (praveens@stanford.edu)
Thu, 24 May 2001 00:27:29 -0700


Hi,
Using the Stanford checker, we searched for null-pointer bugs in the linux
kernel code. This patch fixes numerous unchecked pointers in the ISDN hisax
card driver (fsm.c).

Praveen Srinivasan and Frederick Akalin

--- ../linux/./drivers/isdn/hisax/fsm.c Fri Mar 2 11:12:08 2001
+++ ./drivers/isdn/hisax/fsm.c Mon May 7 21:58:38 2001
@@ -22,6 +22,10 @@

fsm->jumpmatrix = (FSMFNPTR *)
kmalloc(sizeof (FSMFNPTR) * fsm->state_count * fsm->event_count,
GFP_KERNEL);
+ if(fsm->jumpmatrix == NULL) {
+ return;
+ }
+
memset(fsm->jumpmatrix, 0, sizeof (FSMFNPTR) * fsm->state_count *
fsm->event_count);

for (i = 0; i < fncount; i++
-
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