mirror of https://gitlab.com/qemu-project/qemu
7983e82933
The write_console_data() method in sclpconsole-lm.c checks whether the return value of qemu_chr_fe_write() has the value of -EAGAIN and if so then increments the buffer offset by the value of EAGAIN. Fortunately qemu_chr_fe_write() will never return EAGAIN directly, rather it returns -1 with errno set to EAGAIN, so this broken code path was not reachable. The behaviour on EAGAIN was stil bad though, causing the write_console_data() to busy_wait repeatedly calling qemu_chr_fe_write() with no sleep between iters. Just remove all this loop logic and replace with a call to qemu_chr_fe_write_all(). Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1473170165-540-3-git-send-email-berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| .. | ||
| Makefile.objs | ||
| bcm2835_aux.c | ||
| cadence_uart.c | ||
| debugcon.c | ||
| digic-uart.c | ||
| escc.c | ||
| etraxfs_ser.c | ||
| exynos4210_uart.c | ||
| grlib_apbuart.c | ||
| imx_serial.c | ||
| ipoctal232.c | ||
| lm32_juart.c | ||
| lm32_uart.c | ||
| mcf_uart.c | ||
| milkymist-uart.c | ||
| omap_uart.c | ||
| parallel.c | ||
| pl011.c | ||
| sclpconsole-lm.c | ||
| sclpconsole.c | ||
| serial-isa.c | ||
| serial-pci.c | ||
| serial.c | ||
| sh_serial.c | ||
| spapr_vty.c | ||
| stm32f2xx_usart.c | ||
| trace-events | ||
| virtio-console.c | ||
| virtio-serial-bus.c | ||
| xen_console.c | ||
| xilinx_uartlite.c | ||