drivers, pch_dma: Fix uninitialized var before use

In the function pdc_desc_get(), var 'i' is not
initialized before use. This patch fixes it.

Signed-off-by: Liu Yuan <tailai.ly@taobao.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index 8d8fef1480a93115ab17c51f6c97d0130b44b21d..6eebc6205c65d7773fa8d6e598060dd477b5c323 100644 (file)
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -403,7 +403,7 @@ static struct pch_dma_desc *pdc_desc_get(struct pch_dma_chan *pd_chan)
 {
        struct pch_dma_desc *desc, *_d;
        struct pch_dma_desc *ret = NULL;
-       int i;
+       int i = 0;
 
        spin_lock(&pd_chan->lock);
        list_for_each_entry_safe(desc, _d, &pd_chan->free_list, desc_node) {