[PATCH] powerpc/powernv/flash: Check OPAL flash calls exist before using
From: Vasant Hegde <hidden>
Date: 2021-09-14 10:17:33
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Currently only FSP based powernv systems supports firmware update interfaces. Hence check that the token OPAL_FLASH_VALIDATE exists before initalising the flash driver. Signed-off-by: Vasant Hegde <redacted> --- arch/powerpc/platforms/powernv/opal-flash.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/platforms/powernv/opal-flash.c b/arch/powerpc/platforms/powernv/opal-flash.c
index 7e7d38b17420..05490fc22fae 100644
--- a/arch/powerpc/platforms/powernv/opal-flash.c
+++ b/arch/powerpc/platforms/powernv/opal-flash.c@@ -520,6 +520,10 @@ void __init opal_flash_update_init(void) { int ret; + /* Firmware update is not supported by firmware */ + if (!opal_check_token(OPAL_FLASH_VALIDATE)) + return; + /* Allocate validate image buffer */ validate_flash_data.buf = kzalloc(VALIDATE_BUF_SIZE, GFP_KERNEL); if (!validate_flash_data.buf) {
--
2.31.1