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tracing/user_events: Use NULL for strstr checks 

Trivial fix to ensure strstr checks use NULL instead of 0.

Link: https://lkml.kernel.org/r/20220728233309.1896-2-beaub@linux.microsoft.com

Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Beau Belgrave 2022-07-28 16:33:04 -07:00 committed by Steven Rostedt (Google)
parent e841e8bfac
commit 9cbf12343d
1 changed files with 3 additions and 3 deletions
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6
kernel/trace/trace_events_user.c
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@ -277,7 +277,7 @@ static int user_event_add_field(struct user_event *user, const char *type,
goto add_field;
add_validator:
if (strstr(type, "char") != 0)
if (strstr(type, "char") != NULL)
validator_flags |= VALIDATOR_ENSURE_NULL;
validator = kmalloc(sizeof(*validator), GFP_KERNEL);
@ -458,7 +458,7 @@ static const char *user_field_format(const char *type)
return "%d";
if (strcmp(type, "unsigned char") == 0)
return "%u";
if (strstr(type, "char[") != 0)
if (strstr(type, "char[") != NULL)
return "%s";
/* Unknown, likely struct, allowed treat as 64-bit */
@ -479,7 +479,7 @@ static bool user_field_is_dyn_string(const char *type, const char **str_func)
return false;
check:
return strstr(type, "char") != 0;
return strstr(type, "char") != NULL;
}
#define LEN_OR_ZERO (len ? len - pos : 0)