diff options
| -rw-r--r-- | drivers/platform/msm/gsi/gsi_dbg.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/platform/msm/gsi/gsi_dbg.c b/drivers/platform/msm/gsi/gsi_dbg.c index 717c891788f2..eaf50ca1cea5 100644 --- a/drivers/platform/msm/gsi/gsi_dbg.c +++ b/drivers/platform/msm/gsi/gsi_dbg.c @@ -29,6 +29,7 @@ static struct dentry *dent; static char dbg_buff[4096]; +static void *gsi_ipc_logbuf_low; static void gsi_wq_print_dp_stats(struct work_struct *work); static DECLARE_DELAYED_WORK(gsi_print_dp_stats_work, gsi_wq_print_dp_stats); @@ -764,22 +765,20 @@ static ssize_t gsi_enable_ipc_low(struct file *file, if (kstrtos8(dbg_buff, 0, &option)) return -EFAULT; + mutex_lock(&gsi_ctx->mlock); if (option) { - if (!gsi_ctx->ipc_logbuf_low) { - gsi_ctx->ipc_logbuf_low = + if (!gsi_ipc_logbuf_low) { + gsi_ipc_logbuf_low = ipc_log_context_create(GSI_IPC_LOG_PAGES, "gsi_low", 0); + if (gsi_ipc_logbuf_low == NULL) + TERR("failed to get ipc_logbuf_low\n"); } - - if (gsi_ctx->ipc_logbuf_low == NULL) { - TERR("failed to get ipc_logbuf_low\n"); - return -EFAULT; - } + gsi_ctx->ipc_logbuf_low = gsi_ipc_logbuf_low; } else { - if (gsi_ctx->ipc_logbuf_low) - ipc_log_context_destroy(gsi_ctx->ipc_logbuf_low); gsi_ctx->ipc_logbuf_low = NULL; } + mutex_unlock(&gsi_ctx->mlock); return count; } |