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| author | Simon Glass <sjg@chromium.org> | 2014-02-26 15:59:15 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-03-04 12:15:28 -0500 |
| commit | 16ff9902468088a0a559b3db95421355ef60d366 (patch) | |
| tree | 4618524681dff751b2860c3d6b8031b4307b7f1c | |
| parent | 714a5621c2df0b1cfce525b9add071fc9bfd726b (diff) | |
| download | u-boot-imx-16ff9902468088a0a559b3db95421355ef60d366.zip u-boot-imx-16ff9902468088a0a559b3db95421355ef60d366.tar.gz u-boot-imx-16ff9902468088a0a559b3db95421355ef60d366.tar.bz2 | |
Add cmd_process_error() to report and process errors
U-Boot now uses errors defined in include/errno.h which are negative
integers. Commands which fail need to report the error and return 1
to indicate failure. Add this functionality in cmd_process_error().
For now this merely reports the error number. It would be possible
also to produce a helpful error message by storing the error strings
in U-Boot.
Signed-off-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | common/command.c | 10 | ||||
| -rw-r--r-- | include/command.h | 9 |
2 files changed, 19 insertions, 0 deletions
diff --git a/common/command.c b/common/command.c index 597ab4c..26c37f2 100644 --- a/common/command.c +++ b/common/command.c @@ -538,3 +538,13 @@ enum command_ret_t cmd_process(int flag, int argc, char * const argv[], rc = cmd_usage(cmdtp); return rc; } + +int cmd_process_error(cmd_tbl_t *cmdtp, int err) +{ + if (err) { + printf("Command '%s' failed: Error %d\n", cmdtp->name, err); + return 1; + } + + return 0; +} diff --git a/include/command.h b/include/command.h index f782779..d3f700f 100644 --- a/include/command.h +++ b/include/command.h @@ -64,6 +64,15 @@ extern int var_complete(int argc, char * const argv[], char last_char, int maxv, extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp); #endif +/** + * cmd_process_error() - report and process a possible error + * + * @cmdtp: Command which caused the error + * @err: Error code (0 if none, -ve for error, like -EIO) + * @return 0 if there is not error, 1 (CMD_RET_FAILURE) if an error is found + */ +int cmd_process_error(cmd_tbl_t *cmdtp, int err); + /* * Monitor Command * |