diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2011-06-15 14:57:39 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-06-15 14:57:39 -0600 |
| commit | 2bc7c85210d75b7a8a7326284b4f608a16f52ffc (patch) | |
| tree | ca306d89f64ceeee92531cc0a9ba5d246d09f044 /kernel/trace/ftrace.c | |
| parent | 12610be33df5563d3f8cb141f231d4dc5b2a317f (diff) | |
| parent | df2212270ce94f12e9caed6ca04c7077672d588e (diff) | |
Merge branch 'gpio/next-tegra' into gpio/next
Conflicts:
drivers/gpio/Kconfig
drivers/gpio/Makefile
Diffstat (limited to 'kernel/trace/ftrace.c')
| -rw-r--r-- | kernel/trace/ftrace.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 1ee417fcbfa..908038f5744 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2740,7 +2740,7 @@ static int ftrace_process_regex(struct ftrace_hash *hash, { char *func, *command, *next = buff; struct ftrace_func_command *p; - int ret; + int ret = -EINVAL; func = strsep(&next, ":"); @@ -3330,6 +3330,7 @@ static int ftrace_process_locs(struct module *mod, { unsigned long *p; unsigned long addr; + unsigned long flags; mutex_lock(&ftrace_lock); p = start; @@ -3346,7 +3347,13 @@ static int ftrace_process_locs(struct module *mod, ftrace_record_ip(addr); } + /* + * Disable interrupts to prevent interrupts from executing + * code that is being modified. + */ + local_irq_save(flags); ftrace_update_code(mod); + local_irq_restore(flags); mutex_unlock(&ftrace_lock); return 0; |