2006-10-25 03:56:53

by Amit Choudhary

Subject: [PATCH 2.6.19-rc3] drivers/char/synclink.c: check kmalloc() return value.

Description: Check the return value of kmalloc() in function mgsl_alloc_intermediate_txbuffer_memory(), in file drivers/char/synclink.c.

Signed-off-by: Amit Choudhary <[email protected]>

diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index 06784ad..24f99bc 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -4012,8 +4012,13 @@ static int mgsl_alloc_intermediate_txbuf
for ( i=0; i<info->num_tx_holding_buffers; ++i) {
info->tx_holding_buffers[i].buffer =
kmalloc(info->max_frame_size, GFP_KERNEL);
- if ( info->tx_holding_buffers[i].buffer == NULL )
+ if (info->tx_holding_buffers[i].buffer == NULL) {
+ for (--i; i >= 0; i--) {
+ kfree(info->tx_holding_buffers[i].buffer);
+ info->tx_holding_buffers[i].buffer = NULL;
+ }
return -ENOMEM;
+ }
}

return 0;