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Subject[PATCH 2/4] [media] bt8xx: Delete two error messages for a failed memory allocation
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 10 Dec 2016 20:50:58 +0100

Omit extra messages for a memory allocation failure in two functions.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdf
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/media/pci/bt8xx/dst_ca.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/media/pci/bt8xx/dst_ca.c b/drivers/media/pci/bt8xx/dst_ca.c
index 8681b9143a35..54e656ddd588 100644
--- a/drivers/media/pci/bt8xx/dst_ca.c
+++ b/drivers/media/pci/bt8xx/dst_ca.c
@@ -481,10 +481,9 @@ static int ca_send_message(struct dst_state *state, struct ca_msg *p_ca_message,
struct ca_msg *hw_buffer;
int result = 0;

- if ((hw_buffer = kmalloc(sizeof (struct ca_msg), GFP_KERNEL)) == NULL) {
- dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
+ hw_buffer = kmalloc(sizeof(*hw_buffer), GFP_KERNEL);
+ if (!hw_buffer)
return -ENOMEM;
- }
dprintk(verbose, DST_CA_DEBUG, 1, " ");

if (copy_from_user(p_ca_message, arg, sizeof (struct ca_msg))) {
@@ -567,7 +566,6 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
p_ca_slot_info = kmalloc(sizeof (struct ca_slot_info), GFP_KERNEL);
p_ca_caps = kmalloc(sizeof (struct ca_caps), GFP_KERNEL);
if (!p_ca_message || !p_ca_slot_info || !p_ca_caps) {
- dprintk(verbose, DST_CA_ERROR, 1, " Memory allocation failure");
result = -ENOMEM;
goto free_mem_and_exit;
}
--
2.11.0
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