diff options
Diffstat (limited to 'hw/usb/redirect.c')
| -rw-r--r-- | hw/usb/redirect.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c index b5c1558687..04614778fe 100644 --- a/hw/usb/redirect.c +++ b/hw/usb/redirect.c @@ -114,6 +114,7 @@ struct USBRedirDevice { CharBackend cs; bool enable_streams; bool suppress_remote_wake; + bool in_write; uint8_t debug; int32_t bootindex; char *filter_str; @@ -291,6 +292,13 @@ static int usbredir_write(void *priv, uint8_t *data, int count) return 0; } + /* Recursion check */ + if (dev->in_write) { + DPRINTF("usbredir_write recursion\n"); + return 0; + } + dev->in_write = true; + r = qemu_chr_fe_write(&dev->cs, data, count); if (r < count) { if (!dev->watch) { @@ -301,6 +309,7 @@ static int usbredir_write(void *priv, uint8_t *data, int count) r = 0; } } + dev->in_write = false; return r; } |