Initialize structs for ioctls

Initialize the argument structs before calling ioctls to make
valgrind happy.

diff --git a/src/pcm/pcm_hw.c b/src/pcm/pcm_hw.c
index 8735a0ca543759527a7edd11c266e36a5cd00ab2..b29693797f5b9d08a5c01f0de328584f22becf40 100644 (file)
--- a/src/pcm/pcm_hw.c
+++ b/src/pcm/pcm_hw.c
@@ -711,6 +711,7 @@ static snd_pcm_sframes_t snd_pcm_hw_writei(snd_pcm_t *pcm, const void *buffer, s
        struct sndrv_xferi xferi;
        xferi.buf = (char*) buffer;
        xferi.frames = size;
+       xferi.result = 0; /* make valgrind happy */
        err = ioctl(fd, SNDRV_PCM_IOCTL_WRITEI_FRAMES, &xferi);
        err = err >= 0 ? sync_ptr(hw, SNDRV_PCM_SYNC_PTR_APPL) : -errno;
 #ifdef DEBUG_RW
@@ -727,6 +728,7 @@ static snd_pcm_sframes_t snd_pcm_hw_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_
        snd_pcm_hw_t *hw = pcm->private_data;
        int fd = hw->fd;
        struct sndrv_xfern xfern;
+       memset(&xfern, 0, sizeof(xfern)); /* make valgrind happy */
        xfern.bufs = bufs;
        xfern.frames = size;
        err = ioctl(fd, SNDRV_PCM_IOCTL_WRITEN_FRAMES, &xfern);
@@ -747,6 +749,7 @@ static snd_pcm_sframes_t snd_pcm_hw_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_
        struct sndrv_xferi xferi;
        xferi.buf = buffer;
        xferi.frames = size;
+       xferi.result = 0; /* make valgrind happy */
        err = ioctl(fd, SNDRV_PCM_IOCTL_READI_FRAMES, &xferi);
        err = err >= 0 ? sync_ptr(hw, SNDRV_PCM_SYNC_PTR_APPL) : -errno;
 #ifdef DEBUG_RW
@@ -764,6 +767,7 @@ static snd_pcm_sframes_t snd_pcm_hw_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_u
        snd_pcm_hw_t *hw = pcm->private_data;
        int fd = hw->fd;
        struct sndrv_xfern xfern;
+       memset(&xfern, 0, sizeof(xfern)); /* make valgrind happy */
        xfern.bufs = bufs;
        xfern.frames = size;
        err = ioctl(fd, SNDRV_PCM_IOCTL_READN_FRAMES, &xfern);