The extra pairs of parantheses are not needed and causes clang to
generate warnings like this:

sound/pci/hda/patch_ca0132.c:1171:14: error: equality comparison with 
extraneous parentheses [-Werror,-Wparentheses-equality]
        if ((buffer == NULL))
             ~~~~~~~^~~~~~~
sound/pci/hda/patch_ca0132.c:1171:14: note: remove extraneous parentheses 
around the comparison to silence this warning
        if ((buffer == NULL))
            ~       ^      ~
sound/pci/hda/patch_ca0132.c:1171:14: note: use '=' to turn this equality 
comparison into an assignment
        if ((buffer == NULL))

Signed-off-by: Matthias Kaehlcke <m...@chromium.org>
---
 sound/pci/hda/patch_ca0132.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 11b9b2f17a2e..9cc1bbbbef32 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -1168,7 +1168,7 @@ static int dspio_write_multiple(struct hda_codec *codec,
        int status = 0;
        unsigned int count;
 
-       if ((buffer == NULL))
+       if (buffer == NULL)
                return -EINVAL;
 
        count = 0;
@@ -1210,7 +1210,7 @@ static int dspio_read_multiple(struct hda_codec *codec, 
unsigned int *buffer,
        unsigned int skip_count;
        unsigned int dummy;
 
-       if ((buffer == NULL))
+       if (buffer == NULL)
                return -1;
 
        count = 0;
-- 
2.12.0.367.g23dc2f6d3c-goog

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