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drm/i915: [sparse] don't use variable size arrays 

Sparse doesn't like:
"error: bad constant expression"

Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
[danvet: apply s/drm_malloc_ab/kcalloc bikeshed. If it's small enough
for the stack, it's small enough for kmalloc.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2012-04-16 14:07:41 -07:00 committed by Daniel Vetter
parent c43b563403
commit 3bf3f45236
1 changed files with 18 additions and 6 deletions
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24
drivers/gpu/drm/i915/intel_sdvo.c
View File

@ -443,9 +443,17 @@ static const char *cmd_status_names[] = {
static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd, static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
const void *args, int args_len) const void *args, int args_len)
{ {
u8 buf[args_len*2 + 2], status; u8 *buf, status;
struct i2c_msg msgs[args_len + 3]; struct i2c_msg *msgs;
int i, ret; int i, ret = true;
buf = (u8 *)kzalloc(args_len * 2 + 2, GFP_KERNEL);
if (!buf)
return false;
msgs = kcalloc(args_len + 3, sizeof(*msgs), GFP_KERNEL);
if (!msgs)
return false;
intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len); intel_sdvo_debug_write(intel_sdvo, cmd, args, args_len);
@ -479,15 +487,19 @@ static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3); ret = i2c_transfer(intel_sdvo->i2c, msgs, i+3);
if (ret < 0) { if (ret < 0) {
DRM_DEBUG_KMS("I2c transfer returned %d\n", ret); DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
return false; ret = false;
goto out;
} }
if (ret != i+3) { if (ret != i+3) {
/* failure in I2C transfer */ /* failure in I2C transfer */
DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3); DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
return false; ret = false;
} }
return true; out:
kfree(msgs);
kfree(buf);
return ret;
} }
static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo, static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,