[PATCH 5.13 118/351] habanalabs: set rc as valid in case of intentional func exit

Greg Kroah-Hartman
2021-07-19T17:26:29Z

From: Koby Elbaz <kelbaz@habana.ai>

[ Upstream commit 11d5cb8b95456e2432dfee2ffcebf0623998493a ]

fix the following smatch warnings:
hl_fw_static_init_cpu() warn: missing error code 'rc'

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/misc/habanalabs/common/device.c | 5 +++--
drivers/misc/habanalabs/common/firmware_if.c | 5 ++++-
2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c
index 00e92b678828..eea0d3e35b88 100644
--- a/drivers/misc/habanalabs/common/device.c
+++ b/drivers/misc/habanalabs/common/device.c
@@ -1334,8 +1334,9 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
}

/*
- * From this point, in case of an error, add char devices and create
- * sysfs nodes as part of the error flow, to allow debugging.
+ * From this point, override rc (=0) in case of an error to allow
+ * debugging (by adding char devices and create sysfs nodes as part of
+ * the error flow).
*/
add_cdev_sysfs_on_err = true;

diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c
index 0713b2c12d54..86efb9fa701c 100644
--- a/drivers/misc/habanalabs/common/firmware_if.c
+++ b/drivers/misc/habanalabs/common/firmware_if.c
@@ -1006,11 +1006,14 @@ int hl_fw_init_cpu(struct hl_device *hdev, u32 cpu_boot_status_reg,

if (!(hdev->fw_components & FW_TYPE_LINUX)) {
dev_info(hdev->dev, "Skip loading Linux F/W\n");
+ rc = 0;
goto out;
}

- if (status == CPU_BOOT_STATUS_SRAM_AVAIL)
+ if (status == CPU_BOOT_STATUS_SRAM_AVAIL) {
+ rc = 0;
goto out;
+ }

dev_info(hdev->dev,
"Loading firmware to device, may take some time...\n");
--
2.30.2