Description: Check the return value of kmalloc() in function ch_readconfig(), in file drivers/scsi/ch.c.
Signed-off-by: Amit Choudhary <[email protected]>
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index f6caa43..fcd635b 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -324,7 +324,7 @@ ch_readconfig(scsi_changer *ch)
if (!buffer)
return -ENOMEM;
memset(buffer,0,512);
-
+
memset(cmd,0,sizeof(cmd));
cmd[0] = MODE_SENSE;
cmd[1] = ch->device->lun << 5;
@@ -367,7 +367,7 @@ ch_readconfig(scsi_changer *ch)
} else {
vprintk("reading element address assigment page failed!\n");
}
-
+
/* vendor specific element types */
for (i = 0; i < 4; i++) {
if (0 == vendor_counts[i])
@@ -384,6 +384,10 @@ ch_readconfig(scsi_changer *ch)
/* look up the devices of the data transfer elements */
ch->dt = kmalloc(ch->counts[CHET_DT]*sizeof(struct scsi_device),
GFP_KERNEL);
+ if (!ch->dt) {
+ kfree(buffer);
+ return -ENOMEM;
+ }
for (elem = 0; elem < ch->counts[CHET_DT]; elem++) {
id = -1;
lun = 0;
-
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