X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Foprofile%2Fcpu_buffer.c;h=e76d715e4342b70b636183be3e23bbe880a74173;hb=4a4565921aa9255be01921ff8ae339fa7b0a5468;hp=2e03b6d796d39aac794e6c8c52d5de979f82a7c7;hpb=abede81c4fb2e3b85d8760f25e3da39d2c69a134;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index 2e03b6d796d..e76d715e434 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -393,16 +393,21 @@ oprofile_write_reserve(struct op_entry *entry, struct pt_regs * const regs,
 	return;
 
 fail:
+	entry->event = NULL;
 	cpu_buf->sample_lost_overflow++;
 }
 
 int oprofile_add_data(struct op_entry *entry, unsigned long val)
 {
+	if (!entry->event)
+		return 0;
 	return op_cpu_buffer_add_data(entry, val);
 }
 
 int oprofile_write_commit(struct op_entry *entry)
 {
+	if (!entry->event)
+		return -EINVAL;
 	return op_cpu_buffer_write_commit(entry);
 }