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[1/1] hwrng: amd - Convert PCIBIOS_* return codes to errnos

Message ID 20240527132615.14170-1-ilpo.jarvinen@linux.intel.com
State New
Headers show
Series [1/1] hwrng: amd - Convert PCIBIOS_* return codes to errnos | expand

Commit Message

Ilpo Järvinen May 27, 2024, 1:26 p.m. UTC
amd_rng_mod_init() uses pci_read_config_dword() that returns PCIBIOS_*
codes. The return code is then returned as is but amd_rng_mod_init() is
a module_init() function that should return normal errnos.

Convert PCIBIOS_* returns code using pcibios_err_to_errno() into normal
errno before returning it.

Fixes: 96d63c0297cc ("[PATCH] Add AMD HW RNG driver")
Cc: stable@vger.kernel.org
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/char/hw_random/amd-rng.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c
index 86162a13681e..9a24d19236dc 100644
--- a/drivers/char/hw_random/amd-rng.c
+++ b/drivers/char/hw_random/amd-rng.c
@@ -143,8 +143,10 @@  static int __init amd_rng_mod_init(void)
 
 found:
 	err = pci_read_config_dword(pdev, 0x58, &pmbase);
-	if (err)
+	if (err) {
+		err = pcibios_err_to_errno(err);
 		goto put_dev;
+	}
 
 	pmbase &= 0x0000FF00;
 	if (pmbase == 0) {