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tools/kwbimage: Fix compilation warning

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This patch fixes a compilation warning of kwbimage.c:

tools/kwbimage.c: In function ‘kwbimage_set_header’:
tools/kwbimage.c:784:8: warning: ‘headersz’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  memcpy(ptr, image, headersz);
        ^
Instead of using multiple if statements, use a switch statement with
a default entry. And return with error if an unsupported version
is configured in the cfg file.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-By: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Stefan Roese 2014-10-28 11:32:24 +01:00 committed by Anatolij Gustschin
parent e5f1a586a7
commit 934a529f94
1 changed files with 17 additions and 6 deletions
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23
tools/kwbimage.c
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@ -760,14 +760,25 @@ static void kwbimage_set_header(void *ptr, struct stat *sbuf, int ifd,
}
version = image_get_version();
/* Fallback to version 0 is no version is provided in the cfg file */
if (version == -1)
version = 0;
if (version == 0)
switch (version) {
/*
* Fallback to version 0 if no version is provided in the
* cfg file
*/
case -1:
case 0:
image = image_create_v0(&headersz, params, sbuf->st_size);
else if (version == 1)
break;
case 1:
image = image_create_v1(&headersz, params, sbuf->st_size);
break;
default:
fprintf(stderr, "Unsupported version %d\n", version);
free(image_cfg);
exit(EXIT_FAILURE);
}
if (!image) {
fprintf(stderr, "Could not create image\n");