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[SCSI] ch: Check NULL for kmalloc() return

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Verify that ch->dt is not NULL before using it.

Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Davidlohr Bueso A 2009-08-07 16:42:21 -04:00 committed by James Bottomley
parent d68866927d
commit a2cf8a6306
1 changed files with 6 additions and 0 deletions
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6
drivers/scsi/ch.c
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@ -353,6 +353,12 @@ 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;