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

[Praveen Srinivasan]

Hi,
Using the Stanford checker, we searched for null-pointer bugs in the linux 
kernel code. This patch fixes numerous unchecked pointers in the PCMCIA 
bulkmem driver. 

Praveen Srinivasan and Frederick Akalin

--- ../linux/./drivers/pcmcia/bulkmem.c Tue Mar  6 19:28:32 2001
+++ ./drivers/pcmcia/bulkmem.c  Mon May  7 21:53:49 2001
@@ -229,6 +229,10 @@
        else {
            erase->State = 1;
            busy = kmalloc(sizeof(erase_busy_t), GFP_KERNEL);
+
+           if(busy == NULL) {
+             return;
+           }
            busy->erase = erase;
            busy->client = handle;
            init_timer(&busy->timeout);
@@ -360,6 +364,10 @@
        if ((device.dev[i].type != CISTPL_DTYPE_NULL) &&
            (device.dev[i].size != 0)) {
            r = kmalloc(sizeof(*r), GFP_KERNEL);
+           if(r == NULL) {
+             return;
+           }
+
            r->region_magic = REGION_MAGIC;
            r->state = 0;
            r->dev_info[0] = '\0';
-
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