[PATCH next] read_file: Pass NULL for the size parameter if the return value is not used
Sascha Hauer
sha at pengutronix.de
Thu Jun 9 02:30:32 PDT 2022
On Thu, Jun 09, 2022 at 10:26:29AM +0300, Alexander Shiyan wrote:
> Signed-off-by: Alexander Shiyan <eagle.alexander923 at gmail.com>
> ---
> arch/arm/boards/kindle-mx50/board.c | 3 +--
> arch/arm/boards/vscom-baltos/board.c | 3 +--
> arch/arm/mach-omap/xload.c | 14 +++++---------
> commands/spd_decode.c | 3 +--
> common/menutree.c | 3 +--
> lib/libfile.c | 3 +--
> 6 files changed, 10 insertions(+), 19 deletions(-)
Applied, thanks
Sascha
>
> diff --git a/arch/arm/boards/kindle-mx50/board.c b/arch/arm/boards/kindle-mx50/board.c
> index 8fc5af8320..4cfd68a258 100644
> --- a/arch/arm/boards/kindle-mx50/board.c
> +++ b/arch/arm/boards/kindle-mx50/board.c
> @@ -84,10 +84,9 @@ static char *mac;
> static void kindle_rev_init(void)
> {
> int ret;
> - size_t size;
> void *buf;
> const char userdata[] = "/dev/mmc2.boot0.userdata";
> - ret = read_file_2(userdata, &size, &buf, 128);
> + ret = read_file_2(userdata, NULL, &buf, 128);
> if (ret && ret != -EFBIG) {
> pr_err("Could not read board info from %s\n", userdata);
> return;
> diff --git a/arch/arm/boards/vscom-baltos/board.c b/arch/arm/boards/vscom-baltos/board.c
> index 59782d2990..83c7dbc8b0 100644
> --- a/arch/arm/boards/vscom-baltos/board.c
> +++ b/arch/arm/boards/vscom-baltos/board.c
> @@ -85,7 +85,6 @@ static uint8_t get_dip_switch(uint16_t id, uint32_t rev)
> static int baltos_read_eeprom(void)
> {
> struct bsp_vs_hwparam hw_param;
> - size_t size;
> char *buf, var_buf[32];
> int rc;
> unsigned char mac_addr[6];
> @@ -95,7 +94,7 @@ static int baltos_read_eeprom(void)
> return 0;
>
> rc = read_file_2("/dev/eeprom0",
> - &size,
> + NULL,
> (void *)&buf,
> sizeof(hw_param));
> if (rc && rc != -EFBIG)
> diff --git a/arch/arm/mach-omap/xload.c b/arch/arm/mach-omap/xload.c
> index 6d3704b8cf..6a02e2b589 100644
> --- a/arch/arm/mach-omap/xload.c
> +++ b/arch/arm/mach-omap/xload.c
> @@ -115,7 +115,6 @@ static void *omap_xload_boot_mmc(void)
> {
> int ret;
> void *buf;
> - int len;
> const char *diskdev;
> char *partname;
>
> @@ -137,9 +136,9 @@ static void *omap_xload_boot_mmc(void)
>
> free(partname);
>
> - buf = read_file("/barebox.bin", &len);
> + buf = read_file("/barebox.bin", NULL);
> if (!buf)
> - buf = read_file("/boot/barebox.bin", &len);
> + buf = read_file("/boot/barebox.bin", NULL);
> if (!buf) {
> printf("could not read barebox.bin from sd card\n");
> return NULL;
> @@ -156,7 +155,6 @@ static void *omap_xload_boot_spi(struct omap_barebox_part *part)
> static void *omap4_xload_boot_usb(void){
> int ret;
> void *buf;
> - int len;
>
> ret = mount("omap4_usbboot", "omap4_usbbootfs", "/", NULL);
> if (ret) {
> @@ -164,7 +162,7 @@ static void *omap4_xload_boot_usb(void){
> return NULL;
> }
>
> - buf = read_file("/barebox.bin", &len);
> + buf = read_file("/barebox.bin", NULL);
> if (!buf)
> printf("could not read barebox.bin from omap4_usbbootfs\n");
>
> @@ -175,7 +173,6 @@ static void *omap_serial_boot(void){
> struct console_device *cdev;
> int ret;
> void *buf;
> - int len;
> int fd;
>
> /* need temporary place to store file */
> @@ -203,7 +200,7 @@ static void *omap_serial_boot(void){
> return NULL;
> }
>
> - buf = read_file("/barebox.bin", &len);
> + buf = read_file("/barebox.bin", NULL);
> if (!buf)
> printf("could not read barebox.bin from serial\n");
>
> @@ -216,7 +213,6 @@ static void *am33xx_net_boot(void)
> {
> void *buf = NULL;
> int err;
> - int len;
> struct dhcp_req_param dhcp_param;
> const char *bootfile;
> IPaddr_t ip;
> @@ -276,7 +272,7 @@ static void *am33xx_net_boot(void)
>
> file = basprintf("%s/%s", TFTP_MOUNT, bootfile);
>
> - buf = read_file(file, &len);
> + buf = read_file(file, NULL);
> if (!buf)
> printf("could not read %s.\n", bootfile);
>
> diff --git a/commands/spd_decode.c b/commands/spd_decode.c
> index e8ee339a91..fa8fe86cf8 100644
> --- a/commands/spd_decode.c
> +++ b/commands/spd_decode.c
> @@ -16,13 +16,12 @@
> static int do_spd_decode(int argc, char *argv[])
> {
> int ret;
> - size_t size;
> void *data;
>
> if (argc != 2)
> return COMMAND_ERROR_USAGE;
>
> - ret = read_file_2(argv[1], &size, &data, 256);
> + ret = read_file_2(argv[1], NULL, &data, 256);
> if (ret && ret != -EFBIG) {
> printf("unable to read %s: %s\n", argv[1], strerror(-ret));
> return COMMAND_ERROR;
> diff --git a/common/menutree.c b/common/menutree.c
> index 9a14005ea2..7fa835a7fe 100644
> --- a/common/menutree.c
> +++ b/common/menutree.c
> @@ -87,7 +87,6 @@ int menutree(const char *path, int toplevel)
> glob_t g = {};
> int i;
> char *globpath, *display;
> - size_t size;
>
> menu = menu_alloc();
>
> @@ -100,7 +99,7 @@ int menutree(const char *path, int toplevel)
> }
>
> globpath = basprintf("%s/title", path);
> - display = read_file(globpath, &size);
> + display = read_file(globpath, NULL);
> free(globpath);
> if (!display) {
> eprintf("no title found in %s/title\n", path);
> diff --git a/lib/libfile.c b/lib/libfile.c
> index 1f533133c5..3b7985fbca 100644
> --- a/lib/libfile.c
> +++ b/lib/libfile.c
> @@ -162,7 +162,6 @@ char *read_file_line(const char *fmt, ...)
> va_list args;
> char *filename;
> char *buf, *line = NULL;
> - size_t size;
> int ret;
> struct stat s;
>
> @@ -177,7 +176,7 @@ char *read_file_line(const char *fmt, ...)
> if (s.st_size > 1024)
> goto out;
>
> - buf = read_file(filename, &size);
> + buf = read_file(filename, NULL);
> if (!buf)
> goto out;
>
> --
> 2.32.0
>
>
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>
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