[PATCH] ALSA: echoaudio: Replace kmalloc + memcpy with kmemdup

[Chuhong Yuan]

Instead of using kmalloc + memcpy, use kmemdup
to simplify the code.

Signed-off-by: Chuhong Yuan <hsleste...@gmail.com>
---
 sound/pci/echoaudio/echoaudio.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index b612a536a5a1..ca9125726be2 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -2189,11 +2189,10 @@ static int snd_echo_resume(struct device *dev)
        u32 pipe_alloc_mask;
        int err;
 
-       commpage_bak = kmalloc(sizeof(*commpage), GFP_KERNEL);
+       commpage = chip->comm_page;
+       commpage_bak = kmemdup(commpage, sizeof(*commpage), GFP_KERNEL);
        if (commpage_bak == NULL)
                return -ENOMEM;
-       commpage = chip->comm_page;
-       memcpy(commpage_bak, commpage, sizeof(*commpage));
 
        err = init_hw(chip, chip->pci->device, chip->pci->subsystem_device);
        if (err < 0) {
-- 
2.20.1