tree-wide: Sprinkle _clang_suppress_alloc_

Add the clang::suppress attribute to places where allocation is done and
that rely on the cleanup attribute. Clang analyzer doesn't handle those
(yet), so keep it from giving us false positive.

Signed-off-by: Lucas De Marchi <[email protected]>

libkmod/libkmod-config.c

@@ -241,7 +241,7 @@ static int kmod_config_add_blacklist(struct kmod_config *config, const char *mod
 
 	DBG(config->ctx, "modname=%s\n", modname);
 
-	p = strdup(modname);
+	_clang_suppress_alloc_ p = strdup(modname);
 	if (!p)
 		return -ENOMEM;
 

libkmod/libkmod-module.c

@@ -828,7 +828,7 @@ static int module_do_install_commands(struct kmod_module *mod, const char *optio
 		size_t suffixlen = cmdlen - prefixlen - varlen;
 		size_t slen = cmdlen - varlen + options_len;
 		char *suffix = p + varlen;
-		char *s = malloc(slen + 1);
+		_clang_suppress_alloc_ char *s = malloc(slen + 1);
 		if (!s)
 			return -ENOMEM;
 

shared/util.c

@@ -419,7 +419,7 @@ int mkdir_p(const char *path, int len, mode_t mode)
 	_cleanup_free_ char *start;
 	char *end;
 
-	start = memdup(path, len + 1);
+	_clang_suppress_alloc_ start = memdup(path, len + 1);
 	if (!start)
 		return -ENOMEM;
 

tools/depmod.c

@@ -1913,7 +1913,7 @@ static void depmod_report_cycles(struct depmod *depmod, uint16_t n_mods, uint16_
 		n_r++;
 	}
 
-	stack = malloc(n_r * sizeof(void *));
+	_clang_suppress_alloc_ stack = malloc(n_r * sizeof(void *));
 	if (stack == NULL) {
 		ERR("No memory to report cycles\n");
 		goto out_list;
@@ -2920,7 +2920,8 @@ static int do_depmod(int argc, char *argv[])
 			break;
 		case 'C': {
 			size_t bytes = sizeof(char *) * (n_config_paths + 2);
-			void *tmp = realloc(config_paths, bytes);
+			_clang_suppress_alloc_ void *tmp = realloc(config_paths, bytes);
+
 			if (!tmp) {
 				fputs("Error: out-of-memory\n", stderr);
 				goto cmdline_failed;