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

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Date:	Sat, 7 May 2011 12:27:58 +0300
From:	Maxin John <maxin.john@...il.com>
To:	Greg KH <greg@...ah.com>
Cc:	Michal Nazarewicz <mina86@...a86.com>, gregkh@...e.de,
	stern@...land.harvard.edu, m-sonasath@...com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	roger.quadros@...ia.com
Subject: Re: [PATCH] usb: gadget: f_mass_storage: Remove the LUN check which
 is always true

Hi Greg,

>> Please find the patch for "file_storage.c" below. Should I merge these
>> two patches and re-submit as a single one?
>
> Yes please.

As per your suggestion, please find the merged patch below:

Signed-off-by: Maxin B. John <maxin.john@...il.com>
Acked-by: Michal Nazarewicz <mina86@...a86.com>
Acked-by: Alan Stern <stern@...land.harvard.edu>
---
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) {
diff --git a/drivers/usb/gadget/file_storage.c
b/drivers/usb/gadget/file_storage.c
index a6eacb5..a9c5177 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -2314,7 +2314,7 @@ static int check_command(struct fsg_dev *fsg,
int cmnd_size,
                fsg->lun = lun;         // Use LUN from the command

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