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authorAlan Tull <atull@kernel.org>2018-09-12 09:43:23 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-30 08:49:55 -0700
commit34bd283396af1f05c43fa64d51378d38affb1cf1 (patch)
tree51ba04c6fbe0a5afbf97589873b738d49aa2b8d6 /drivers/fpga/of-fpga-region.c
parent41e270f6898e7502be9fd6920ee0a108ca259d36 (diff)
fpga: do not access region struct after fpga_region_unregister
A couple drivers were accessing the region struct after it had been freed. Save off the pointer to the mgr before the region struct gets freed. Signed-off-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga/of-fpga-region.c')
-rw-r--r--drivers/fpga/of-fpga-region.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c
index 35fabb8083fb..052a1342ab7e 100644
--- a/drivers/fpga/of-fpga-region.c
+++ b/drivers/fpga/of-fpga-region.c
@@ -437,9 +437,10 @@ eprobe_mgr_put:
static int of_fpga_region_remove(struct platform_device *pdev)
{
struct fpga_region *region = platform_get_drvdata(pdev);
+ struct fpga_manager *mgr = region->mgr;
fpga_region_unregister(region);
- fpga_mgr_put(region->mgr);
+ fpga_mgr_put(mgr);
return 0;
}