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fdt: check for fdt errors in fdt_create_phandle 

fdt_create_phandle() was ignoring errors from fdt_set_phandle().  If an
error occurs, print an error message and return 0, which is an invalid
phandle.  We also need to change the return type for fdt_create_phandle()
to indicate that it cannot return an error code.

Signed-off-by: Timur Tabi <timur@freescale.com>
This commit is contained in:
Timur Tabi 2011-09-20 18:24:34 -05:00 committed by Gerald Van Baren
parent 8ddb10eae0
commit 3c927cccdc
2 changed files with 10 additions and 3 deletions
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11
common/fdt_support.c
View File

@ -1241,15 +1241,22 @@ int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle)
* @fdt: ptr to device tree
* @nodeoffset: node to update
*/
int fdt_create_phandle(void *fdt, int nodeoffset)
unsigned int fdt_create_phandle(void *fdt, int nodeoffset)
{
/* see if there is a phandle already */
int phandle = fdt_get_phandle(fdt, nodeoffset);
/* if we got 0, means no phandle so create one */
if (phandle == 0) {
int ret;
phandle = fdt_alloc_phandle(fdt);
fdt_set_phandle(fdt, nodeoffset, phandle);
ret = fdt_set_phandle(fdt, nodeoffset, phandle);
if (ret < 0) {
printf("Can't set phandle %u: %s\n", phandle,
fdt_strerror(ret));
return 0;
}
}
return phandle;

2
include/fdt_support.h
View File

@ -97,7 +97,7 @@ int fdt_node_offset_by_compat_reg(void *blob, const char *compat,
phys_addr_t compat_off);
int fdt_alloc_phandle(void *blob);
int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle);
int fdt_create_phandle(void *fdt, int nodeoffset);
unsigned int fdt_create_phandle(void *fdt, int nodeoffset);
int fdt_add_edid(void *blob, const char *compat, unsigned char *buf);
int fdt_verify_alias_address(void *fdt, int anode, const char *alias,