[libcamera-devel] [PATCH] libcamera: frame_buffer: Print errno on mmap() failure

[Umang Jain]

In mmap() error handling path, errno is stored but never printed
in the error log. Print it.

Signed-off-by: Umang Jain <umang.jain at ideasonboard.com>
---
 src/libcamera/framebuffer.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libcamera/framebuffer.cpp b/src/libcamera/framebuffer.cpp
index 41e6e68f..280f64c6 100644
--- a/src/libcamera/framebuffer.cpp
+++ b/src/libcamera/framebuffer.cpp
@@ -388,7 +388,8 @@ MappedFrameBuffer::MappedFrameBuffer(const FrameBuffer *buffer, int flags)
 				     MAP_SHARED, plane.fd.fd(), 0);
 		if (address == MAP_FAILED) {
 			error_ = -errno;
-			LOG(Buffer, Error) << "Failed to mmap plane";
+			LOG(Buffer, Error) << "Failed to mmap plane: "
+					   << strerror(-error_);
 			break;
 		}
 
-- 
2.31.1