Currently return status is not getting checked for get_api_version
and because of that for x86 arch we are getting below smatch error.

    CC      drivers/soc/xilinx/zynqmp_power.o
drivers/soc/xilinx/zynqmp_power.c: In function 'zynqmp_pm_probe':
drivers/soc/xilinx/zynqmp_power.c:295:12: warning: 'pm_api_version' is
used uninitialized [-Wuninitialized]
    295 |         if (pm_api_version < ZYNQMP_PM_VERSION)
        |            ^
    CHECK   drivers/soc/xilinx/zynqmp_power.c
drivers/soc/xilinx/zynqmp_power.c:295 zynqmp_pm_probe() error:
uninitialized symbol 'pm_api_version'.

So, check return status of pm_get_api_version and return error in case
of failure to avoid checking uninitialized pm_api_version variable.

Fixes: b9b3a8be28b3 ("firmware: xilinx: Remove eemi ops for get_api_version")
Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
---
V1: https://lore.kernel.org/lkml/20240424063118.23200-1-jay.buddhabhatti@amd.com/
V1->V2: Removed AMD copyright
---
 drivers/soc/xilinx/zynqmp_power.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/xilinx/zynqmp_power.c b/drivers/soc/xilinx/zynqmp_power.c
index 965b1143936a..b82c01373f53 100644
--- a/drivers/soc/xilinx/zynqmp_power.c
+++ b/drivers/soc/xilinx/zynqmp_power.c
@@ -190,7 +190,9 @@ static int zynqmp_pm_probe(struct platform_device *pdev)
 	u32 pm_api_version;
 	struct mbox_client *client;
 
-	zynqmp_pm_get_api_version(&pm_api_version);
+	ret = zynqmp_pm_get_api_version(&pm_api_version);
+	if (ret)
+		return ret;
 
 	/* Check PM API version number */
 	if (pm_api_version < ZYNQMP_PM_VERSION)
-- 
2.17.1

On Wed, May 08, 2024 at 09:36:29PM -0700, Jay Buddhabhatti wrote:
> Currently return status is not getting checked for get_api_version
> and because of that for x86 arch we are getting below smatch error.
> 
>     CC      drivers/soc/xilinx/zynqmp_power.o
> drivers/soc/xilinx/zynqmp_power.c: In function 'zynqmp_pm_probe':
> drivers/soc/xilinx/zynqmp_power.c:295:12: warning: 'pm_api_version' is
> used uninitialized [-Wuninitialized]
>     295 |         if (pm_api_version < ZYNQMP_PM_VERSION)
>         |            ^
>     CHECK   drivers/soc/xilinx/zynqmp_power.c
> drivers/soc/xilinx/zynqmp_power.c:295 zynqmp_pm_probe() error:
> uninitialized symbol 'pm_api_version'.
> 
> So, check return status of pm_get_api_version and return error in case
> of failure to avoid checking uninitialized pm_api_version variable.
> 
> Fixes: b9b3a8be28b3 ("firmware: xilinx: Remove eemi ops for get_api_version")
> Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
> ---
> V1: https://lore.kernel.org/lkml/20240424063118.23200-1-jay.buddhabhatti@amd.com/
> V1->V2: Removed AMD copyright
> ---

Why is this a RESEND?

Also my bot had issues:

--------

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