Commit 25e69962 authored by Vasant Hegde's avatar Vasant Hegde Committed by Michael Ellerman
Browse files

powerpc/powernv/flash: Check OPAL flash calls exist before using 



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: default avatarVasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210914101630.30613-1-hegdevasant@linux.vnet.ibm.com
parent bb12dd42

arch/powerpc/platforms/powernv/opal-flash.c

+4 −0
Original line number Diff line number Diff line
@@ -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) {