From: Souptick Joarder <jrdr.linux@xxxxxxxxx>
[ Upstream commit c9d7e3da1f3c4cf5dddfc5d7ce4d76d013aba1cc ]
Corrected error handling goto sequnece. Level put_pages should
be called when pinned pages >= 0 && pinned != npages. Level
free_pages should be called when pinned pages < 0.
Fixes: fa8dda1edef9 ("fpga: dfl: afu: add DFL_FPGA_PORT_DMA_MAP/UNMAP ioctls support")
Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx>
Acked-by: Wu Hao <hao.wu@xxxxxxxxx>
Reviewed-by: Xu Yilun <yilun.xu@xxxxxxxxx>
Link: https://lore.kernel.org/r/1589825991-3545-1-git-send-email-jrdr.linux@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/fpga/dfl-afu-dma-region.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c
index 62f924489db59..5942343a5d6ea 100644
--- a/drivers/fpga/dfl-afu-dma-region.c
+++ b/drivers/fpga/dfl-afu-dma-region.c
@@ -61,10 +61,10 @@ static int afu_dma_pin_pages(struct dfl_feature_platform_data *pdata,
region->pages);
if (pinned < 0) {
ret = pinned;
- goto put_pages;
+ goto free_pages;
} else if (pinned != npages) {
ret = -EFAULT;
- goto free_pages;
+ goto put_pages;
}
dev_dbg(dev, "%d pages pinned\n", pinned);
--
2.25.1
