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trace: Tidy up error returns

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At present many functions in this file return -1. Update them to return a
valid error code. Also tidy up the 'return' statements at the same time,
since these should have a blank line before them.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2019-04-08 13:20:50 -06:00
parent f611a46ef1
commit f564d09608
1 changed files with 9 additions and 5 deletions
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14
lib/trace.c
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@ -183,7 +183,8 @@ int trace_list_functions(void *buff, int buff_size, unsigned int *needed)
/* Work out how must of the buffer we used */
*needed = ptr - buff;
if (ptr > end)
return -1;
return -ENOSPC;
return 0;
}
@ -227,7 +228,8 @@ int trace_list_calls(void *buff, int buff_size, unsigned *needed)
/* Work out how must of the buffer we used */
*needed = ptr - buff;
if (ptr > end)
return -1;
return -ENOSPC;
return 0;
}
@ -302,7 +304,7 @@ int __attribute__((no_instrument_function)) trace_init(void *buff,
memcpy(buff, hdr, used);
#else
puts("trace: already enabled\n");
return -1;
return -EALREADY;
#endif
}
hdr = (struct trace_hdr *)buff;
@ -310,7 +312,7 @@ int __attribute__((no_instrument_function)) trace_init(void *buff,
if (needed > buff_size) {
printf("trace: buffer size %zd bytes: at least %zd needed\n",
buff_size, needed);
return -1;
return -ENOSPC;
}
if (was_disabled)
@ -327,6 +329,7 @@ int __attribute__((no_instrument_function)) trace_init(void *buff,
hdr->depth_limit = 15;
trace_enabled = 1;
trace_inited = 1;
return 0;
}
@ -346,7 +349,7 @@ int __attribute__((no_instrument_function)) trace_early_init(void)
if (needed > buff_size) {
printf("trace: buffer size is %zd bytes, at least %zd needed\n",
buff_size, needed);
return -1;
return -ENOSPC;
}
memset(hdr, '\0', needed);
@ -361,6 +364,7 @@ int __attribute__((no_instrument_function)) trace_early_init(void)
printf("trace: early enable at %08x\n", CONFIG_TRACE_EARLY_ADDR);
trace_enabled = 1;
return 0;
}
#endif