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usb: gadget: f_mass_storage: If 'ro'/'cdrom' specified, open file as read-only

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If we don't need Write access then attempt to open backing file in Read Only
mode instead of bailing out too soon.

Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Roger Quadros 2011-04-05 18:36:39 +03:00 committed by Greg Kroah-Hartman
parent 73ee4da994
commit 3c624d4962
1 changed files with 1 additions and 0 deletions
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drivers/usb/gadget/f_mass_storage.c
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@ -2757,6 +2757,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun, ++lcfg) { for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun, ++lcfg) {
curlun->cdrom = !!lcfg->cdrom; curlun->cdrom = !!lcfg->cdrom;
curlun->ro = lcfg->cdrom || lcfg->ro; curlun->ro = lcfg->cdrom || lcfg->ro;
curlun->initially_ro = curlun->ro;
curlun->removable = lcfg->removable; curlun->removable = lcfg->removable;
curlun->dev.release = fsg_lun_release; curlun->dev.release = fsg_lun_release;
curlun->dev.parent = &gadget->dev; curlun->dev.parent = &gadget->dev;