Blackfin arch: add missing gpio error handling to make sure we roll back requests in case one fails (314c98d5) · Commits · 戴 / test

arch/blackfin/kernel/bfin_gpio.c

+8 −2

Original line number	Diff line number	Diff line
		@@ -711,10 +711,16 @@ int peripheral_request_list(unsigned short per[], const char *label)
		int ret;

		for (cnt = 0; per[cnt] != 0; cnt++) {

		ret = peripheral_request(per[cnt], label);
		if (ret < 0)

		if (ret < 0) {
		for ( ; cnt > 0; cnt--) {
		peripheral_free(per[cnt - 1]);
		}
		return ret;
		}
		}

		return 0;
		}

+9 −2

Original line number	Diff line number	Diff line
		@@ -212,10 +212,17 @@ int peripheral_request_list(unsigned short per[], const char *label)
		int ret;

		for (cnt = 0; per[cnt] != 0; cnt++) {

		ret = peripheral_request(per[cnt], label);
		if (ret < 0)

		if (ret < 0) {
		for ( ; cnt > 0; cnt--) {
		peripheral_free(per[cnt - 1]);
		}
		return ret;
		}
		}


		return 0;
		}