From 354fa867103bb22a36371a90664a072c9aa71db7 Mon Sep 17 00:00:00 2001 From: Peng Fan <peng.fan@nxp.com> Date: Fri, 21 Apr 2017 16:56:50 +0800 Subject: [PATCH] imx-common: rdc-sema: correct return value When unlock, if caller is not the sema owner, return -EACCES, not 1. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de> --- arch/arm/imx-common/rdc-sema.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/imx-common/rdc-sema.c b/arch/arm/imx-common/rdc-sema.c index 5df4e02b53..1d97ac8e7f 100644 --- a/arch/arm/imx-common/rdc-sema.c +++ b/arch/arm/imx-common/rdc-sema.c @@ -94,7 +94,7 @@ int imx_rdc_sema_unlock(int per_id) reg = readb(&imx_rdc_sema->gate[per_id % SEMA_GATES_NUM]); if ((reg & RDC_SEMA_GATE_GTFSM_MASK) != RDC_SEMA_PROC_ID) - return 1; /*Not the semaphore owner */ + return -EACCES; /*Not the semaphore owner */ writeb(0x0, &imx_rdc_sema->gate[per_id % SEMA_GATES_NUM]); -- 2.39.5