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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