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modprobe: fix "modprobe devname:snd/timer" case (alias with a slash)

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2015-01-15 03:04:23 +01:00
parent e998b08f11
commit 76b2262b9b
1 changed files with 9 additions and 4 deletions
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13
modutils/modprobe.c
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@ -207,7 +207,7 @@ static struct module_entry *helper_get_module(const char *module, int create)
unsigned i;
unsigned hash;
filename2modname(bb_get_last_path_component_nostrip(module), modname);
filename2modname(module, modname);
hash = 0;
for (i = 0; modname[i]; i++)
@ -232,9 +232,14 @@ static ALWAYS_INLINE struct module_entry *get_or_add_modentry(const char *module
{
return helper_get_module(module, 1);
}
static ALWAYS_INLINE struct module_entry *get_modentry(const char *module)
/* So far this function always gets a module pathname, never an alias name.
* The crucial difference is that pathname needs dirname stripping,
* while alias name must NOT do it!
* Testcase where dirname stripping is likely to go wrong: "modprobe devname:snd/timer"
*/
static ALWAYS_INLINE struct module_entry *get_modentry(const char *pathname)
{
return helper_get_module(module, 0);
return helper_get_module(bb_get_last_path_component_nostrip(pathname), 0);
}
static void add_probe(const char *name)
@ -502,7 +507,7 @@ static void load_modules_dep(void)
colon = last_char_is(tokens[0], ':');
if (colon == NULL)
continue;
*colon = 0;
*colon = '\0';
m = get_modentry(tokens[0]);
if (m == NULL)