linux-kernel - [PATCH] usb: gadget: f_mass_storage: Remove the LUN check which is always true

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Message-ID: <BANLkTik9e5it5vTMxvFUnZGpoO8N0ida8Q@mail.gmail.com>
Date:	Wed, 4 May 2011 15:16:05 +0100
From:	Maxin John <maxin.john@...il.com>
To:	m.nazarewicz@...sung.com
Cc:	gregkh@...e.de, stern@...land.harvard.edu, mina86@...a86.com,
	m-sonasath@...com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, roger.quadros@...ia.com
Subject: [PATCH] usb: gadget: f_mass_storage: Remove the LUN check which is
 always true

Hi,

Since comparing an unsigned int (common->lun)  greater than or equal
to zero is always true, I think it is safe to remove this check.
Please let me know your comments.

Thanks to Coverity for pointing this out.

Signed-off-by: Maxin B. John <maxin.john@...il.com>
---
diff --git a/drivers/usb/gadget/f_mass_storage.c
b/drivers/usb/gadget/f_mass_storage.c
index 6d8e533..cade79e 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -1910,7 +1910,7 @@ static int check_command(struct fsg_common
*common, int cmnd_size,
                    common->lun, lun);

        /* Check the LUN */
-       if (common->lun >= 0 && common->lun < common->nluns) {
+       if (common->lun < common->nluns) {
                curlun = &common->luns[common->lun];
                common->curlun = curlun;
                if (common->cmnd[0] != REQUEST_SENSE) {
--
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