ASoC: xlnx: fix error handling in xlnx_formatter_pcm_probe

Currently, if platform_get_irq_byname() fails, the returned error
turns into a huge value, once it is being store into a variable
of type unsigned int, hence never actually reporting any error
and causing unexpected behavior when using the values stored
in aud_drv_data->s2mm_irq and aud_drv_data->mm2s_irq.

Fix this by changing the type of variables s2mm_irq and mm2s_irq in
structure xlnx_pcm_drv_data from unsigned int to int.

Addresses-Coverity-ID: 1476096 ("Unsigned compared against 0")
Fixes: 796175a94a7f ("ASoC: xlnx: add pcm formatter platform driver")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/xilinx/xlnx_formatter_pcm.c b/sound/soc/xilinx/xlnx_formatter_pcm.c
index f7235f7664d75cbf301caa5747ef219dcc0eb05c..d2194da928e79182c56afb9b6324fac9f3f015fd 100644 (file)
--- a/sound/soc/xilinx/xlnx_formatter_pcm.c
+++ b/sound/soc/xilinx/xlnx_formatter_pcm.c
@@ -76,8 +76,8 @@ struct xlnx_pcm_drv_data {
        void __iomem *mmio;
        bool s2mm_presence;
        bool mm2s_presence;
-       unsigned int s2mm_irq;
-       unsigned int mm2s_irq;
+       int s2mm_irq;
+       int mm2s_irq;
        struct snd_pcm_substream *play_stream;
        struct snd_pcm_substream *capture_stream;
        struct clk *axi_clk;