ALSA: asihpi - Increase request and response buffer sizes

Allow for up to 256 bytes of extra data on top of standard hpi
request and response sizes.

Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 7 insertions, 6 deletions

diff --git a/sound/pci/asihpi/hpicmn.c b/sound/pci/asihpi/hpicmn.c
index 801dcd89c86e..fe2e1ae3853d 100644
--- a/sound/pci/asihpi/hpicmn.c
+++ b/sound/pci/asihpi/hpicmn.c
@@ -315,8 +315,7 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
         short found = 1;
         struct hpi_control_cache_info *pI;
         struct hpi_control_cache_single *pC;
-        struct hpi_control_cache_pad *p_pad;
-
+        u16 response_size;
         if (!find_control(phm->obj_index, p_cache, &pI)) {
                 HPI_DEBUG_LOG(VERBOSE,
                         "HPICMN find_control() failed for adap %d\n",
@@ -326,11 +325,15 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
 
         phr->error = 0;
 
+        /* set the default response size */
+        response_size =
+                sizeof(struct hpi_response_header) +
+                sizeof(struct hpi_control_res);
+
         /* pC is the default cached control strucure. May be cast to
            something else in the following switch statement.
          */
         pC = (struct hpi_control_cache_single *)pI;
-        p_pad = (struct hpi_control_cache_pad *)pI;
 
         switch (pI->control_type) {
 
@@ -529,9 +532,7 @@ short hpi_check_control_cache(struct hpi_control_cache *p_cache,
                 pI->control_index, pI->control_type, phm->u.c.attribute);
 
         if (found)
-                phr->size =
-                        sizeof(struct hpi_response_header) +
-                        sizeof(struct hpi_control_res);
+                phr->size = response_size;
 
         return found;
 }