A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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n_gsm: gsm_data_alloc buffer allocation could fail and it is not being checked

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gsm_data_alloc buffer allocation could fail and it is not being checked.

Add check for allocated buffer and return if the buffer allocation
fails.

Signed-off-by: Ken Mills <[email protected]>
Signed-off-by: Alan Cox <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Ken Mills 2010-12-13 15:28:03 +00:00 • committed by Greg Kroah-Hartman
commit 093d804611
1 changed files with 2 additions and 0 deletions
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2
drivers/tty/n_gsm.c
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@ -968,6 +968,8 @@ static void gsm_control_reply(struct gsm_mux *gsm, int cmd, u8 *data,
{
struct gsm_msg *msg;
msg = gsm_data_alloc(gsm, 0, dlen + 2, gsm->ftype);
if (msg == NULL)
return;
msg->data[0] = (cmd & 0xFE) << 1 | EA; /* Clear C/R */
msg->data[1] = (dlen << 1) | EA;
memcpy(msg->data + 2, data, dlen);