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Use strdup() on the name (and free it when it's done) so non-static names

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can be used in firmware_register().
This commit is contained in:
Adrian Chadd 2012-04-13 04:22:42 +00:00
parent 28926c5766
commit 676c1784cb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=234201
1 changed files with 8 additions and 2 deletions
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10
sys/kern/subr_firmware.c
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@ -175,6 +175,9 @@ firmware_register(const char *imagename, const void *data, size_t datasize,
unsigned int version, const struct firmware *parent)
{
struct priv_fw *match, *frp;
char *str;
str = strdup(imagename, M_TEMP);
mtx_lock(&firmware_mtx);
/*
@ -185,16 +188,18 @@ firmware_register(const char *imagename, const void *data, size_t datasize,
mtx_unlock(&firmware_mtx);
printf("%s: image %s already registered!\n",
__func__, imagename);
free(str, M_TEMP);
return NULL;
}
if (frp == NULL) {
mtx_unlock(&firmware_mtx);
printf("%s: cannot register image %s, firmware table full!\n",
__func__, imagename);
free(str, M_TEMP);
return NULL;
}
bzero(frp, sizeof(frp)); /* start from a clean record */
frp->fw.name = imagename;
frp->fw.name = str;
frp->fw.data = data;
frp->fw.datasize = datasize;
frp->fw.version = version;
@ -230,7 +235,7 @@ firmware_unregister(const char *imagename)
err = 0;
} else if (fp->refcnt != 0) { /* cannot unregister */
err = EBUSY;
} else {
} else {
linker_file_t x = fp->file; /* save value */
/*
@ -238,6 +243,7 @@ firmware_unregister(const char *imagename)
* do not forget anything. Then restore 'file' which is
* non-null for autoloaded images.
*/
free((void *) (uintptr_t) fp->fw.name, M_TEMP);
bzero(fp, sizeof(struct priv_fw));
fp->file = x;
err = 0;