[PATCH] Char: isicom, check kmalloc retval

Value returned from kamlloc may be NULL, we should check if ENOMEM occured.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/char/isicom.c

diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 91b9784..783a7ec 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -1709,6 +1709,11 @@
 		}
 
 		data = kmalloc(word_count * 2, GFP_KERNEL);
+		if (data == NULL) {
+			dev_err(&pdev->dev, "Card%d, firmware upload "
+				"failed, not enough memory\n", index + 1);
+			goto errrelfw;
+		}
 		inw(base);
 		insw(base, data, word_count);
 		InterruptTheCard(base);