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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 <han.xu@nxp.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Han Xu 2016-04-04 15:41:29 -05:00 committed by Boris Brezillon
parent 269ecf03a5
commit 2cd395d13a
1 changed files with 1 additions and 0 deletions
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drivers/mtd/nand/gpmi-nand/gpmi-nand.c
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@ -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;
}