From: Kulikov Vasiliy <segooon@gmail.com>
Date: Fri, 30 Jul 2010 11:08:00 +0000 (+0400)
Subject: staging: otus: check kmalloc() return value
X-Git-Tag: firefly_0821_release~9833^2~1255^2~1^2~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d49d0e39a09209d0136c7da2a1a52e99af2d4656;p=firefly-linux-kernel-4.4.55.git

staging: otus: check kmalloc() return value

kmalloc() may fail, if so return error from zfwUsbSubmitControl().

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/otus/wrap_usb.c b/drivers/staging/otus/wrap_usb.c
index 93459cadc472..9f04047bf5a6 100644
--- a/drivers/staging/otus/wrap_usb.c
+++ b/drivers/staging/otus/wrap_usb.c
@@ -104,6 +104,11 @@ u32_t zfwUsbSubmitControl(zdev_t *dev, u8_t req, u16_t value, u16_t index,
 
 	if (size > 0) {
 		buf = kmalloc(size, GFP_KERNEL);
+		if (buf == NULL) {
+			pr_err("zfwUsbSubmitControl() failed, "
+				  "kmalloc() returned NULL\n");
+			return 1;
+		}
 		memcpy(buf, (u8_t *)data, size);
 	} else
 		buf = NULL;