On 04/26/2017 08:32 AM, Andre Przywara wrote:
At the moment we ignore any errors due to missing FIT properties,
instead go ahead and calculate our addresses with the -1 return value.
Fix this and bail out if any of the mandatory properties are missing.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
Tested-by: Kever Yang <[email protected]>
Thanks,
- Kever
---
common/spl/spl_fit.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
index 85af980..ecd42d8 100644
--- a/common/spl/spl_fit.c
+++ b/common/spl/spl_fit.c
@@ -11,14 +11,17 @@
#include <libfdt.h>
#include <spl.h>
+#define FDT_ERROR ((ulong)(-1))
+
static ulong fdt_getprop_u32(const void *fdt, int node, const char *prop)
{
const u32 *cell;
int len;
cell = fdt_getprop(fdt, node, prop, &len);
- if (len != sizeof(*cell))
- return -1U;
+ if (!cell || len != sizeof(*cell))
+ return FDT_ERROR;
+
return fdt32_to_cpu(*cell);
}
@@ -222,7 +225,11 @@ int spl_load_simple_fit(struct spl_image_info *spl_image,
/* Get its information and set up the spl_image structure */
data_offset = fdt_getprop_u32(fit, node, "data-offset");
+ if (data_offset == FDT_ERROR)
+ return -ENOENT;
data_size = fdt_getprop_u32(fit, node, "data-size");
+ if (data_size == FDT_ERROR)
+ return -ENOENT;
load = fdt_getprop_u32(fit, node, "load");
debug("data_offset=%x, data_size=%x\n", data_offset, data_size);
spl_image->load_addr = load;
@@ -265,6 +272,10 @@ int spl_load_simple_fit(struct spl_image_info *spl_image,
}
fdt_offset = fdt_getprop_u32(fit, node, "data-offset");
fdt_len = fdt_getprop_u32(fit, node, "data-size");
+ if (fdt_offset == FDT_ERROR || fdt_len == FDT_ERROR) {
+ debug("%s: cannot load FDT data\n" __func__);
+ return -ENOENT;
+ }
/*
* Read the device tree and place it after the image. There may be
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