diff options
| author | Moritz Fischer <mdf@kernel.org> | 2019-05-30 17:52:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-30 17:56:11 +0300 |
| commit | 498ddaa3b4e72152ae42dab2d4ebe93092885422 (patch) | |
| tree | 3f9ef0b836632f28d9f6e228105c1454cb6c88dc /drivers/fpga/zynqmp-fpga.c | |
| parent | bd17cc5a20ae9aaa3ed775f360b75ff93cd66a1d (diff) | |
| download | linux-498ddaa3b4e72152ae42dab2d4ebe93092885422.tar.xz | |
fpga: zynqmp-fpga: Correctly handle error pointer
Fixes the following static checker errors:
drivers/fpga/zynqmp-fpga.c:50 zynqmp_fpga_ops_write()
error: 'eemi_ops' dereferencing possible ERR_PTR()
drivers/fpga/zynqmp-fpga.c:84 zynqmp_fpga_ops_state()
error: 'eemi_ops' dereferencing possible ERR_PTR()
Note: This does not handle the EPROBE_DEFER value in a
special manner.
Fixes commit c09f7471127e ("fpga manager: Adding FPGA Manager support for
Xilinx zynqmp")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga/zynqmp-fpga.c')
| -rw-r--r-- | drivers/fpga/zynqmp-fpga.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/fpga/zynqmp-fpga.c b/drivers/fpga/zynqmp-fpga.c index f7cbaadf49ab..b8a88d21d038 100644 --- a/drivers/fpga/zynqmp-fpga.c +++ b/drivers/fpga/zynqmp-fpga.c @@ -47,7 +47,7 @@ static int zynqmp_fpga_ops_write(struct fpga_manager *mgr, char *kbuf; int ret; - if (!eemi_ops || !eemi_ops->fpga_load) + if (IS_ERR_OR_NULL(eemi_ops) || !eemi_ops->fpga_load) return -ENXIO; priv = mgr->priv; @@ -81,7 +81,7 @@ static enum fpga_mgr_states zynqmp_fpga_ops_state(struct fpga_manager *mgr) const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops(); u32 status; - if (!eemi_ops || !eemi_ops->fpga_get_status) + if (IS_ERR_OR_NULL(eemi_ops) || !eemi_ops->fpga_get_status) return FPGA_MGR_STATE_UNKNOWN; eemi_ops->fpga_get_status(&status); |