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Thu, 09 Apr 2026 07:41:52 -0700 (PDT) From: Hungyu Lin To: Sudip Mukherjee , Teddy Wang , Greg Kroah-Hartman Cc: linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Hungyu Lin Subject: [PATCH 1/2] staging: sm750fb: return -ETIMEDOUT on timeout in de_wait functions Date: Thu, 9 Apr 2026 14:41:18 +0000 Message-Id: <20260409144119.21500-2-dennylin0707@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260409144119.21500-1-dennylin0707@gmail.com> References: <20260409144119.21500-1-dennylin0707@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The hw_sm750le_de_wait() and hw_sm750_de_wait() functions return -1 when a timeout occurs. Replace these with -ETIMEDOUT to use a proper errno value and better describe the error condition. All callers check the return value as non-zero, so this change does not alter existing behavior. Signed-off-by: Hungyu Lin --- drivers/staging/sm750fb/sm750_hw.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c index a2798d428663..3809401baa3a 100644 --- a/drivers/staging/sm750fb/sm750_hw.c +++ b/drivers/staging/sm750fb/sm750_hw.c @@ -502,7 +502,7 @@ int hw_sm750le_de_wait(void) return 0; } /* timeout error */ - return -1; + return -ETIMEDOUT; } int hw_sm750_de_wait(void) @@ -520,7 +520,7 @@ int hw_sm750_de_wait(void) return 0; } /* timeout error */ - return -1; + return -ETIMEDOUT; } int hw_sm750_pan_display(struct lynxfb_crtc *crtc, -- 2.34.1