[U-Boot] [PATCH 1/1] efi_loader: efi_dp_split_file_path() error handling
Heinrich Schuchardt
xypron.glpk at gmx.de
Mon Feb 4 17:26:54 UTC 2019
If the path passed to efi_dp_split_file_path() does not contain a
reference to a file it returns EFI_OUT_OF_RESOURCES. This does not properly
indicate the kind of the problem that occurred. Return
EFI_INVALID_PARAMETER instead.
Update function description.
Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
lib/efi_loader/efi_device_path.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
index d94982314a..98c36e798f 100644
--- a/lib/efi_loader/efi_device_path.c
+++ b/lib/efi_loader/efi_device_path.c
@@ -910,9 +910,17 @@ struct efi_device_path *efi_dp_from_mem(uint32_t memory_type,
return start;
}
-/*
- * Helper to split a full device path (containing both device and file
- * parts) into it's constituent parts.
+/**
+ * efi_dp_split_file_path() - split of relative file path from device path
+ *
+ * Given a device path indicating a file on a device, separate the device
+ * path in two: the device path of the actual device and the file path
+ * relative to this device.
+ *
+ * @full_path: device path including device and file path
+ * @device_path: path of the device
+ * @file_path: relative path of the file
+ * Return: status code
*/
efi_status_t efi_dp_split_file_path(struct efi_device_path *full_path,
struct efi_device_path **device_path,
@@ -929,7 +937,7 @@ efi_status_t efi_dp_split_file_path(struct efi_device_path *full_path,
while (!EFI_DP_TYPE(p, MEDIA_DEVICE, FILE_PATH)) {
p = efi_dp_next(p);
if (!p)
- return EFI_OUT_OF_RESOURCES;
+ return EFI_INVALID_PARAMETER;
}
fp = efi_dp_dup(p);
if (!fp)
--
2.20.1
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