tools: imx8image: check lseek return value

Check lseek return value.

Fix Coverity CID: 184236 184235 184232

Reported-by: Coverity
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>

diff --git a/tools/imx8image.c b/tools/imx8image.c
index e6b0a146b66857755d69e5bae529a68099bec68a..03debe547e62d1aa7172630598bca32df7583648 100644 (file)
--- a/tools/imx8image.c
+++ b/tools/imx8image.c
@@ -301,6 +301,7 @@ static void copy_file_aligned(int ifd, const char *datafile, int offset,
        unsigned char *ptr;
        uint8_t zeros[0x4000];
        int size;
+       int ret;
 
        if (align > 0x4000) {
                fprintf(stderr, "Wrong alignment requested %d\n", align);
@@ -333,7 +334,13 @@ static void copy_file_aligned(int ifd, const char *datafile, int offset,
        }
 
        size = sbuf.st_size;
-       lseek(ifd, offset, SEEK_SET);
+       ret = lseek(ifd, offset, SEEK_SET);
+       if (ret < 0) {
+               fprintf(stderr, "%s: lseek error %s\n",
+                       __func__, strerror(errno));
+               exit(EXIT_FAILURE);
+       }
+
        if (write(ifd, ptr, size) != size) {
                fprintf(stderr, "Write error %s\n", strerror(errno));
                exit(EXIT_FAILURE);
@@ -359,7 +366,7 @@ static void copy_file (int ifd, const char *datafile, int pad, int offset)
        int tail;
        int zero = 0;
        uint8_t zeros[4096];
-       int size;
+       int size, ret;
 
        memset(zeros, 0, sizeof(zeros));
 
@@ -387,7 +394,13 @@ static void copy_file (int ifd, const char *datafile, int pad, int offset)
        }
 
        size = sbuf.st_size;
-       lseek(ifd, offset, SEEK_SET);
+       ret = lseek(ifd, offset, SEEK_SET);
+       if (ret < 0) {
+               fprintf(stderr, "%s: lseek error %s\n",
+                       __func__, strerror(errno));
+               exit(EXIT_FAILURE);
+       }
+
        if (write(ifd, ptr, size) != size) {
                fprintf(stderr, "Write error %s\n",
                        strerror(errno));
@@ -762,6 +775,7 @@ static int build_container(soc_type_t soc, uint32_t sector_size,
        char *tmp_filename = NULL;
        uint32_t size = 0;
        uint32_t file_padding = 0;
+       int ret;
 
        int container = -1;
        int cont_img_count = 0; /* indexes to arrange the container */
@@ -883,7 +897,12 @@ static int build_container(soc_type_t soc, uint32_t sector_size,
        } while (img_sp->option != NO_IMG);
 
        /* Add padding or skip appended container */
-       lseek(ofd, file_padding, SEEK_SET);
+       ret = lseek(ofd, file_padding, SEEK_SET);
+       if (ret < 0) {
+               fprintf(stderr, "%s: lseek error %s\n",
+                       __func__, strerror(errno));
+               exit(EXIT_FAILURE);
+       }
 
        /* Note: Image offset are not contained in the image */
        tmp = flatten_container_header(&imx_header, container + 1, &size,