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usb: musb: omap: fix the error check for pm_runtime_get_sync

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pm_runtime_get_sync returns a signed integer. In case of errors
it returns a negative value. This patch fixes the error check
by making it signed instead of unsigned thus preventing register
access if get_sync_fails. Also passes the error cause to the
debug message.

Cc: stable@vger.kernel.org
Cc:  Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Shubhrajyoti D 2012-03-22 12:48:06 +05:30 committed by Felipe Balbi
parent 8ae8090c82
commit ad579699c4
1 changed files with 3 additions and 2 deletions
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5
drivers/usb/musb/omap2430.c
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@ -282,7 +282,8 @@ static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
static int omap2430_musb_init(struct musb *musb) static int omap2430_musb_init(struct musb *musb)
{ {
u32 l, status = 0; u32 l;
int status = 0;
struct device *dev = musb->controller; struct device *dev = musb->controller;
struct musb_hdrc_platform_data *plat = dev->platform_data; struct musb_hdrc_platform_data *plat = dev->platform_data;
struct omap_musb_board_data *data = plat->board_data; struct omap_musb_board_data *data = plat->board_data;
@ -301,7 +302,7 @@ static int omap2430_musb_init(struct musb *musb)
status = pm_runtime_get_sync(dev); status = pm_runtime_get_sync(dev);
if (status < 0) { if (status < 0) {
dev_err(dev, "pm_runtime_get_sync FAILED"); dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status);
goto err1; goto err1;
} }