ALSA: echoaudio: check kmalloc() result

If kmalloc() fails exit with -ENOMEM.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Ack-by: Giuliano Pochini <pochini@shiny.it>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index 668a5ec..20763dd 100644 (file)
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -2250,6 +2250,8 @@ static int snd_echo_resume(struct pci_dev *pci)
        DE_INIT(("resume start\n"));
        pci_restore_state(pci);
        commpage_bak = kmalloc(sizeof(struct echoaudio), GFP_KERNEL);
+       if (commpage_bak == NULL)
+               return -ENOMEM;
        commpage = chip->comm_page;
        memcpy(commpage_bak, commpage, sizeof(struct comm_page));