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fix(PISPI): close fd on ioctl error paths

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Three ioctl calls after successful open() returned false without
closing the file descriptor, leaking one fd per failed open attempt.
This commit is contained in:
andrey
2026-08-06 17:01:30 +03:00
committed by andrey
parent 1aa6f1af81
commit c8ad8ecaf4
1 changed files with 6 additions and 0 deletions
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libs/main/io_devices/pispi.cpp
+6
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@@ -106,18 +106,24 @@ bool PISPI::openDevice() {
ret = ioctl(PRIVATE->fd, SPI_IOC_WR_MODE, &spi_mode); ret = ioctl(PRIVATE->fd, SPI_IOC_WR_MODE, &spi_mode);
if (ret == -1) { if (ret == -1) {
piCoutObj << "can't set spi write mode"; piCoutObj << "can't set spi write mode";
::close(PRIVATE->fd);
PRIVATE->fd = -1;
return false; return false;
} }
// piCoutObj << "set bits" << spi_bits; // piCoutObj << "set bits" << spi_bits;
ret = ioctl(PRIVATE->fd, SPI_IOC_WR_BITS_PER_WORD, &spi_bits); ret = ioctl(PRIVATE->fd, SPI_IOC_WR_BITS_PER_WORD, &spi_bits);
if (ret == -1) { if (ret == -1) {
piCoutObj << "can't set bits per word"; piCoutObj << "can't set bits per word";
::close(PRIVATE->fd);
PRIVATE->fd = -1;
return false; return false;
} }
// piCoutObj << "set speed" << spi_speed; // piCoutObj << "set speed" << spi_speed;
ret = ioctl(PRIVATE->fd, SPI_IOC_WR_MAX_SPEED_HZ, &spi_speed); ret = ioctl(PRIVATE->fd, SPI_IOC_WR_MAX_SPEED_HZ, &spi_speed);
if (ret == -1) { if (ret == -1) {
piCoutObj << "can't set max write speed hz"; piCoutObj << "can't set max write speed hz";
::close(PRIVATE->fd);
PRIVATE->fd = -1;
return false; return false;
} }
piCoutObj << "SPI open" << path() << "speed:" << spi_speed / 1000 << "KHz" piCoutObj << "SPI open" << path() << "speed:" << spi_speed / 1000 << "KHz"