ARM: OMAP: Fix warning in dsp_ctl_core.c

Fix warning

arch/arm/plat-omap/dsp/dsp_ctl_core.c: In function 'dsp_ctl_core_open':
arch/arm/plat-omap/dsp/dsp_ctl_core.c:46: warning: ignoring return
value of 'mutex_lock_interruptible', declared with attribute
warn_unused_result

Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/plat-omap/dsp/dsp_ctl_core.c b/arch/arm/plat-omap/dsp/dsp_ctl_core.c
index d17a5c86f6abbfde7611bb27e058c2c568bba7e2..956ef269871d18784cb99dea40744dc063da953d 100644 (file)
--- a/arch/arm/plat-omap/dsp/dsp_ctl_core.c
+++ b/arch/arm/plat-omap/dsp/dsp_ctl_core.c
@@ -43,7 +43,8 @@ static int dsp_ctl_core_open(struct inode *inode, struct file *file)
        static DEFINE_MUTEX(open_lock);
        int ret = 0;
 
-       mutex_lock_interruptible(&open_lock);
+       if (mutex_lock_interruptible(&open_lock))
+               return -EINTR;
        if (omap_dsp->initialized == 0) {
                ret = dsp_late_init();
                if (ret != 0) {