mtd: gpmi: fix raw_buffer pointer double free issue

fix the raw_buffer pointer double free issue found by coverify. CID 18344 (#2 of 2): Double free (USE_AFTER_FREE) 3. double_free: Calling gpmi_alloc_dma_buffer frees pointer this->raw_buffer which has already been freed Signed-off-by: Han Xu <[email protected]> Reviewed-by: Richard Weinberger <[email protected]> Signed-off-by: Boris Brezillon <[email protected]>
bbrezillon · Apr 19, 2016 · 2cd395d · 2cd395d
1 parent 269ecf0
commit 2cd395d
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -797,6 +797,7 @@ static void gpmi_free_dma_buffer(struct gpmi_nand_data *this)
 
 	this->cmd_buffer	= NULL;
 	this->data_buffer_dma	= NULL;
+	this->raw_buffer	= NULL;
 	this->page_buffer_virt	= NULL;
 	this->page_buffer_size	=  0;
 }